S&W “new” SD9 and SD40

Smith & Wesson has unveiled the new Model SD9 and Model SD40 pistols. These “new” guns are simply S&W Sigma Series pistols with some improvements and a new name. The improvements over the Sigma are improved trigger, tritium night front sight, rubber grip pads, better slide serrations and the a picatinny accessory rail.

Caliber 9mm / .40 S&W
Capacity 9mm (16+1) .40 (14+1) Low capacity versions also offered (10+1)
Finish Polymer Frame/Black Stainless Steel Slide & Barrel
Action Striker Fired Action
Barrel 4″
Total Length 7.2″
Weight 22.7 oz
Front Sight Tritium Night Sight
Rear Sight Steel Fixed 2-Dot
MSRP (Price) $530

The pistols will be available from June.

Steve Johnson

Founder and Dictator-In-Chief of TFB. A passionate gun owner, a shooting enthusiast and totally tacti-uncool. Favorite first date location: any gun range. Steve can be contacted here.


  • jaekelopterus

    It’s a sad day when an American firearm manufacturer has to re-brand their pistol to make it look and sound more Croatian.

  • Andrew

    They didn’t “resurrect” the Sigma line. It was never gone from their lineup. They just updated it cosmetically to match their M&P line better.

    • Andrew, I stand corrected. I thought it was gone from their lineup.

  • Pete

    looks like they just dropped the trigger from the M&P into a Sigma and updated the looks a bit (the trijicon front sight is a nice touch). the use of a rail on a “budget” pistol is a bit questionable, but looking at the MSRP I don’t think this a budget offering any more..

  • Carl

    Why don’t they just drop the Sigma and concentrate on the M&P? These pistol lines are competing against each other. The M&P seems to be widely respected and popular. The Sigma not so much (and I don’t think a cosmetic upgrade is going to help).

  • Chris

    I’m hoping the MSRP is a typo for $350, otherwise they got rid of one of the biggest appeals of the Sigma: its price. Now it’s in direct competition with GLOCK and XD, which will not mean well for sales.

  • SpudGun

    We go fail now! Not only are S&W trying to re-launch a pistol with a questionable history into an over saturated hi-cap polymer market, but they’ve priced it in line with their M&P products.

    I’m all for choice, but I can’t see why anyone would choose a Sigma over a Glock / XDM / M&P, etc.

  • Is the M&P trigger any better than the Sigma’s?
    My old Sigma, that I got rid of after 6 months, had about 12 lbs of trigger pull. It was awful, always pulling to the left b/c of the amount of finger squeeze I had to apply. I bought it to be a $300 truck gun, and I do have to admit it ran pretty much any ammo and needed minimal maintenance. I actually didn’t mind paying so much for the magazines since they were bomb-proof. However, since it had a trigger like a revolver, I ended up selling it and buying a Sig P229.
    Now I own two more Sigs and an HK and I am very happy with them, but I wouldn’t mind buying S&W again if the trigger doesn’t suck, especially since my other pistols generally run close to or above $1K.
    If the M&P trigger is good, I may just buy one of the M&P’s and skip this rebranded Sigma.

  • openminded

    Is is true that sigmas were(and are) bit problematic? Some practical examples oberved?

  • 4Cammer

    Thanks S&W. Stuff like this makes me appreciate my all steel CZ-75 and 85’s even more. And my old S&W Model 539…will never understand this plastic gun craze.

    Does look much better than the old Sigma, I will give them that.

  • Boner Stallone

    Im all for the improvements, but I dont get it. For $530, why would someone be inclined purchase one of these over an M&P?

  • Ladyfox

    Err, I love you S&W but methinks you would have been better served dropping the Sigma line entirely and releasing a mid-size line of M&P’s that match the dimensions of the G19. Heck, while we’re dreaming here you could have even done some of these options:

    a. Made a .22LR conversion for the M&P line
    b. Revised the .22LR 21A with a Browning-style magazine release
    c. Release the shorty 10-round magazine for the 15-22
    d. Released a variation of your i-Bolt rifle in .223 that accepts AR-style magazines.
    e. Released a i-Bolt rifle chambered in .22LR

    I could go on with the number of different things you could done instead of, quite literally, putting lipstick on a pig of a pistol that IMHO is your single biggest flop ever produced. -_-

  • Vak

    It’s not a revolution, but it’s a nice improvement on their “budget” gun (some nice features, like the tritium sights or improved serrations) and if they manage to keep the price low and the quality decent, they coul sell a lot of these for home defense.

    And then use the profits to launch a metal framed, dual stack 10mm, that would be awesome.

  • It looks like it’s be a really comfy grip angle on that.

  • Xstang

    mkay, thats nice I guess….did they fix the feeding problems these things had? doubt it.

  • Clint1911

    It costs almost nothing to have 1913 rails put on a new mold and for a “house gun” a light on the gun and in your hand is a good idea.

    S&W tend to MSRP their guns high. Sigmas “list” for $482 but “street” for about $300. So the SD is really only $50 higher. The sigma’s biggest flaw is the trigger. Heavy, gritty and stacks. I can handle heavy but the stacking (increased resistance as you near the trigger break) hurts shootablity. Fixing the trigger alone is a $50 gunsmith job.

    So, this might be like getting a tritium front sight for free.

    BTW, this would be the fourth gen sigma, so maybe the project stared out as Sigma Delta?

  • DJ

    Maybe it’s just me but this seems to be extremely redundant. Why are they still selling this? Seems like a waste of money…

  • Brian

    The only thing they really needed to do with their VE Sigmas was to improve the trigger. At its current price, if the Sigmas had M&P triggers it would be a killer product (and probably cannibalize their M&Ps as well).

  • Nill

    This needs to be selling for hundreds under MSRP considering you can already grab an M&P for ~$540.

    But with the Sigma retailing for $320, I’ll bet the SD series ends up being ~$430.

    Personally, it makes their lineup a bit too crowded. The Sigma really should have been dumped so they could space these two apart a bit more.

  • Tony

    But the big question is: will it actually have a decent trigger this time? (I have some experience with a first generation Sigma – the trigger, even after a bit of tweaking, remained absolutely unusable. A gun with a trigger that can’t be used properly is kind of pointless…)

  • Yeah, for $530…I’d much rather get an XD for cheaper!

  • Woodroez

    jaek more or less summed up my feeling on this in the first comment.

    I’m pretty much over the whole plastic gun thing. I’ll be at my local gunshop when they open tomorrow to trade my XD9 in toward another Springfield Armory, the Mil-Spec 1911.

    • reddog

      It’s not plastic. It’s a polymer plastic, same as Glock. I’ve dropped my SD 9 several times and never had a break or crack. The guns are solid and very reliable, that’s why Glock sued S&W with the Sigma. They are also very affordable, got mine for $370 this is after they have been out for several years however. In the end I would rather have a Glock or S&W not 1911, try and field strip 1911 vs. a S&W. S&W wins everytime.

  • Matthew S.

    This makes sense, sort of. The “Military & Police” branding may be off-putting to some. When you repeatedly say a pistol specifically designed for “home-defense.” You target a specific demographic. And for whatever reason the grip reminds me of a Magpul MOE/MIAD.

  • Tyson Chandler

    I think the slide serrations really help the appearance of this pistol. However, for that MSRP, I would buy an M&P first. I will be curious to see what the actual price will be when these get into the market.

  • Chris

    Looks like the M&P MSRP is $700, and it goes for well less than that, so we can assume the same for this. Looks like this won’t turn out to be a bad deal after all.

  • Nancy

    I bought a Sigma 9mm and had to pay $72 to smooth out the gritty rough hard to pull trigger. For $100 more than I paid for the gun and trigger job, I could have gone to Academy and gotten an M&P 9mm or 40. Hope the Model SD40 works well out of the box or it will fail miserably!

  • Squidpuppy

    Always thought the Sigma line was a rather pretty industrial design; clean lines, nice curves, utilitarian but elegant. Almost a museum piece for modern tool design. Never actually shot one though. For looks alone, and nothing else, I prefer the rounded trigger guard. As far as shootin’ irons go, I’ll stick with my 1911s and Glocks.

    Anyone carry Sigmas as duty pistols?

  • Frank

    “Looks like the M&P MSRP is $700, and it goes for well less than that, so we can assume the same for this. Looks like this won’t turn out to be a bad deal after all.”

    S&W are always known for over doing their MSRPs

  • Bobby

    This is stupid.

    I am a firm believer that polymer > steel. But seriously?

    We don’t need another variation of a shitty gun.

    If you’re going to produce a pistol, produce something NEW.

  • B Woodman

    This looks like an updated version of a S&W SW40C that I bought used. (Possibly discontinued line?) The only major external difference I can see is the slide. Everything else looks the same.
    I hope S&W built in some safeties on this one, as mine has NO safeties whatsoever. No grip, slide, trigger or other internal or external safeties.
    It’s a nice gun to shoot, with a fair amount of recoil. But I worry whenever anyone else picks it up, experienced or not (especially not).
    The only way to “safety” it is to totally unload it, magazine & chamber, triple-checked. And that’s how I hand it to another person to examine — totally unloaded.

    “Keep your booger-hook off of the bang-switch.”

  • Carl

    “No grip, slide, trigger or other internal or external safeties.”

    Are you sure it doesn’t have a striker block?

    “The only way to “safety” it is to totally unload it, magazine & chamber, triple-checked. And that’s how I hand it to another person to examine — totally unloaded.”

    That’s a good practice – as long as it is still treated as loaded (rule #1).

  • B Woodman

    What is a striker block? And how do I check to find if it has a striker block?

    Even my High-Point has a better safety system that I can see. At least it has an external slide lock (that also disables the striker) that the shooter can manually manipulate.

  • Carl

    Striker block (or striker safety)- a mechanism that stops the striker from impacting the primer unless the trigger is depressed.
    For instance, if the striker was to slip from the trigger bar due to the pistol being dropped or somehow impacted, or if some part fails, the striker block will prevent a discharge.

  • B Woodman

    So a striker-block might be a totally internal mechanism?
    Which would be ok if I happened to drop the gun.
    But it does nothing to prevent accidental firing by a child who happens to pick it up.
    Not that the 1911 is the apex of gun safeties, but it’s up there:
    grip safety
    slide lock safety
    hammer half-cock safety (I think? I might be wrong on that)

    As far as I know, my S&W SW40C has NO safeties.
    (I’ll have to look on the S&W website again, & email to ask, again)

  • Carl

    Woodman, yes it is an internal safety.
    Firearm safeties are not for protecting children (your own or their friends). For that you need a gun safe.
    I think you underestimate kids if you think they cannot figure out how to operate the manual safety on a 1911 (the grip safety is clearly deactivated automatically just by holding the pistol).

  • Roland Delacroix

    All you guys that paid for a trigger job, you could have sent it to S&W for the same thing at no cost under warranty. They even pay shipping both ways. The trigger comes hard because its replicating revolver DAO and as a safety measure. It comes gritty, because you paid $250 (or less) for the Sigma, and they have to cut machining corners somewhere. Send it in and get it smoothed and lightened.

    The SD should do well. Sigma is great for the price, but when you add in blacking the slide and adding a rail adapter, and a lighter pull, the SD looks alot better. I’m sure warranty can perform the same magic and drop pull to roughly 6lbs, but MANY people see 8-10lb as perfect for developing proper trigger technique.

  • Pastor Dan

    Bought an M&P .40 last night (on sale, $100 off the store’s regular price) for $499.99. S & W is running a $50 mail in rebate through Monday, so it really only cost me $450. MSRP is — sit down for this — $719.00.

    Store had advertised the compact for the same price, but were sold out. I decided that the full size really does feel better in the hand anyway; had I bought the 40c, I planned to fit the second included magazine with the little pinky finger extension. I’ve read that S&W will send those to you for free, but in more recent posts I’ve read that they will bill you something under a dollar each, plus postage.

    In reality, though I will obtain a CCW license soon, the gun will be mostly for recreation, and will be around if needed for home defense, it will probably be carried on my person rarely. Thus, the slightly larger pistol (overall length and barrel length each about 3/4″ more, & empty weight higher by 2.35 ounces) really doesn’t bother me so much, and the extra 5 rounds in the mag help me not to worry about it.

    Both the full size and compact come in a variety of safety arrangements; I got the thumb safety so I could point to it and tell my dear sweet wonderful wife, “This is the safety. Up is Safe; down is Fire.” They also have a mag safety and an internal lock system available, and all (I think) have that funny little multipart trigger flap gizmo.

    For the substantial difference in money, I might very well have bought the Sigma, had it not been for that miserable trigger pull.

    FWIW, I also looked closely at Glock, the XD in all three sizes, the Taurus Millennium PRO, and probably some others that I just don’t recall. Made in USA does matter to me, so that was an intangible factor, but so is the fact that I will be eating beans and porridge for a few weeks to pay for this thing. Don’t know their list prices, but I can say that the store’s price on the Glock was well beyond my means, the Taurus would’ve been around $75 less, and the low-end XD was priced about the same as the M&P, if the M&P hadn’t been on sale & had the rebate offer.

  • CoreyD

    This whole thread is a total farse. Sigmas do have a striker safety built in. But more importantly the SD shares no operational parts with the Sigma. The SD is essentially an M&P in a Sigma package. The slide is a totally new design , as well as the trigger and sear assemblies. Do a little searching and there are pics that people took at the NRA show that clearly show this is not a rebranded Sigma.

  • Dwight Osborn

    I had a SD40 in my hand today. It is an awesome weapon. Very nice feel. One of the best feeling weapons i’ve ever held. Can’t wait to test fire one. Plan on buying a 9mm.

  • These pistols are now on sale at Shooterjax.com for 379.00. At Buds Gun Shop.com they are 403.00 delivered.
    I suspect they will come down, a tad, with time.
    As far as the Sigma goes, I got my .40 caliber one for 303.00 delivered from Buds Gun Shop. Then I got the Smith 50.00 rebate.
    I have spoken to salesmen from various gun shops who have sold hundreds and hundreds of them. One salesman said he did have one return..Glocks break too, ya’ know (come out of the cult for a while, you’re and American, I hope).
    They fixed the Sigma’s ailments a while ago . For all you gun snobs out there who can afford a 500 dollar plus gun, remember that lots of folks can’t. A cheap gun is better than your wee wee in your hand.
    And stop whining about the trigger!! How do you think people that had revolver all those years did with those double action triggers. They never complained about a ten+ pound trigger pull. If nothing else, it will teach you better trigger control. If you care to work at it a little.
    In World War II, Germany had far superior weapons than any other nation.
    But we made due with what we had and won the war.
    Stop whinning about the Sigma and this new SD. Go do some volunteer work and stop worrying about your magazine capacity and how many zombies you can shoot before reloading.
    Believe me, when your in a life and death situation your trigger pull wont be on your mind. I’ve been there and the trigger was the last thing I thought about.
    Come on now, let’s all go down to the homeless shelter and do what God intended us to do.

  • Pastor Dan

    First shot with the M&P 40 missed the little red dot on the center of the groundhog’s paper chest by an inch, from 15 paces. Okay, that was my best shot first time out, too, but I haven’t practiced for a long time. Emptying 4 mags worth of Winchester 165 grain cheap (relatively, anyway) practice ammo, I missed the paper with one shot, but the other 59 rounds were easily within a zone that would have done serious damage to a two-legged varmint. (It would be nice if those all came with that red dot in the right place, though.)

    The pistol shoots like a dream, frankly. I remember shooting my Ruger KP89 quite a few years ago and feeling a lot more pain in the palm. I expected the .40 to be at least as punishing after a dozen shots or so, but it was child’s play by comparison, ultimately. Love the trigger, too.

    Let’s see. The Fish & Game Association range is 10 miles each way; my little half-Toyota Pontiac gets about 27 MPG, gas went up another nickel or so yesterday… Yeah, if I could afford it and could find the time, I’d happily put twenty bucks or so into this kind of recreation every day. Well, not counting the price of the pistol. Twenty-two bucks, if it only lasts 15,000 rounds.

    God bless America.

  • Will

    I had one of the early Sigmas and kept if for about a decade. It was a decent gun but nothing to brag about. For $300 it was a good value, reliable and was never ammo picky. The trigger was crap but it was ok for a home defense gun in that price range. I would recommend the Sigma to someone shopping in the $300 (or so) price range. Not everyone can afford the really good stuff.
    I can’t see paying over $500 for this pistol. I hope that price is just an inflated MSRP. I would hate to see this pistol get dropped from the lineup because it really is a decent gun for those that have to work hard just to raise the cash for a $300 semi automatic. At $500 + it will not sell and will soon be dropped.

  • Mike

    The SIGMAs have been working fine for some time now. The SD9/40 are much improved pistols, w a lot of M&P parts upgrades. I’ve shot the SD9/40 and like them. They feel better to me than the M&P, XD, and Glock (have had all them too). They fit in M&P holsters BTW. Local retail prices are still at least $50 under the XD and Glock.

  • Dwight

    I think many will be in awe of the SD. I can not call it an improved sigma. The grip is excellent. When I first picked one up it was a perfect fit in the hand. The notched grip and 18 degree angle make a big difference. Lines up on target and feels wonderful. The trigger is really nice. smooth, not too heavy for most (average) shooters. It’s a really nice weapon. Not too heavy either. Balance is really good.

  • ScottD

    I purchased the SD40 at a gun show this weekend in Frisco, TX for $379. After cleaning it (recommended by the owners manual before shooting) I took it to the range and put 100 rounds (180 40 SW) through it. The felt recoil was minimal (I was pleased) and it feels very good in my hands. I don’t feel like I have to keep adjusting my grip to make it comfortable to shoot. Also it was hotter than hell and my hands were getting sweaty…the grip allowed be to keep good control. (I can’t make this claim with my Glock 22). As far as accuracy goes I would say it’s decent. My groups were fairly close. If a bad guy were to break into my home I feel very comfortable that I could place 2 or 3 rounds in the vitals (more if needed because it comes with 2 14 round mags). I’ll have to keep practicing before I could say I’d use it if the bad guy were also holding my wife hostage. Hopefully it would never get to that point because in most circumstances she will be behind me while I’m taking care of the intruder. So..100 rounds with no mishaps…no stove pipes, etc. We’ll see what happens after 1000 rounds however I’m sure it will still perform well as I’m very disciplined about cleaning my guns. I just put the ball game on…sip some iced tea and clean guns. Makes for a great weekend!

  • jason s

    My dealer sells them for $398.00. Its a decent looking pistol, the trigger could be the only flaw, but for some its not.

  • randy

    hey guys……. i picked a sd40 up at a gun shop and fell in love with the grip…… trigger was good……… thinner than my tarus pt111…….cant wait to shoot it……. its on layaway……. 412.00

  • Rick

    Hey guys, new here and thanks for the comments, very informative.

    I just got back from the gun show in Portland, OR and handled the SD9/40. The comments here since June are ones I generally agree with.

    The ergonomics of the grip are great, fit my hand better than any other gun I’ve handled or used.

    I’ve used Glocks and I’m good with those, but not crazy about them because the grips have never felt great to me (especially the compacts and subs). I’ve just handled an XD, never used one… I like the feel of an XD better than the Glocks… but my only thing about the XD (a dumb mental block I guess) was the safety on the grip… in a pressure situation I don’t want to be thinking about my grip.

    The SD trigger? Feels OK to me but it is a bit different than what I used to with Glocks. I can’t compare to a Sigma because I’ve never used one.

    That said, it’s not a gun that you’ll show off to gun enthusiasts or take to competitions. It’s a standard looking polymer marketed for home security and range practice, and that’s about right for this one.

    So I picked up the SD9 today, haven’t fired it yet… but convenient trigger or not, I’m figuring a S&W will fire just fine when I want it to. Cost was about $420, a little more than what some others here paid but still less than the MSRP.

  • Rick

    One criticism of the SD9… the polymer frame doesn’t align with the muzzle. It’s not a big deal, it still works… but it looks cheap and lazy… poor polymer molding job, flimsy frame by the muzzle. Check out their website if you want a picture of what I mean. I imagine S&W will fix it eventually, well, they should anyway.

  • Paralus

    Manufacturer’s SUGGESTED Retail Price.

    MSRP is never what the gun actually sells for in the real world.

  • Stan

    SD9 or SD40, Gander Mountain – $399.99 – now through September 25th (in store only)

  • KC

    I bought an SD9 from Gander mountain this weekend. I’ve been looking for my first pistol for 6 months. I couldn’t find anything that fit my hand right. The slide release is looong on this gun so it was perfect for my stubby thumbs. Grip is slim and feels great in the hand. I just couldn’t justify spending an extra $150 for a glock or xd that feels like a brick just to have the name. Lifetime warranty, made in the USA. Bought it on the spot for 389. Some people will say m&p but it didn’t have anything I HaD to have that SD didn’t. Just need something reliable for the night stand. Feel like I was exactly who S&w was marketing this to. Right gun at perfect price point.

  • gunny

    I have the gen.1 sigma 40. Though it does have a very heavy trigger, I shoot a 6 inch group, dead center, at 30 feet rapid fire, so I’m not sure why people call it unusable. They just haven’t taken the time to learn the weapon. I also have the M&P, the trigger feels like butter after shooting the Sigma and, admittedly my groups are much tighter(2″-3″). If S&W did put the M&P trigger in the SD’s it would have been a beautiful combo, but I am pretty certain they did not. The $530 everyone is throwing around as a price for the new SD40 is something they saw on a website, because they actually sell for $400 plus or minus a few, depending on where you look. I am definitely selling my 1st gen Sigma to buy the upgrade. I guess if I’m going to have a sigma I might as well have the upgraded model. It sure won’t break the bank, and if it’s as accurate as my current one I”ll be pleased.

  • Dan

    I have a Sigma GVE in 40S&W. I’ve owned it for several years and have had absolutely no problems of any kind with it. It eats everything I have put through it. It shoots to point of aim and it is accurate enough for its intended purpose.
    I cut a loop or two from the larger of the two springs in the Sigma’s sear block, and polished the sear block too. This has smoothed and lightened its trigger a good bit. I did nothing to its striker spring, because I want good solid hits to the primer.
    I replaced its plastic guide rod with a steel one. I have also installed Meprolight night sights on it. I have a CCL, and the Sigma is my go to pistol when I leave home. I have absolute confidence in it.
    I recently picked up an SD40. The SD40 has the same great feel and natural pointing as the Sigma. I prefer it to the Glock, which just don’t fit my hand as well as these do. If my memory serves me correctly, I paid $429.00 for it. It has a better trigger than the Sigma, but not as light as the one on the M&P. I used the magazines from my Sigma in my SD40 when I ran its first 300+ rounds through it. They worked perfectly. The only difference I can see between the magazines of the Sigma and SD40, is the base and the follower. I discovered that the sights on the SD are the same as those on the M&P, so I’ll be installing some Meprolight sights on it in the near future.

  • Willie300s

    Stay away from the SD pistols. Many have bad frames and S&W will not stand behind them. I speak from experience.

  • Dan

    Bad frames on the SD pistols? Me thinks not. I’d like to see some verifiable evidence of such, but there doesn’t seem to be out there. I have a strong suspicion that none can or will be produced. Then there is the bit about Smith & Wesson not standing behind their products. In a word, wrong!

    I called Smith & Wesson on December 3, 2010 concerning the supposed issue of bad frames on the SD series pistols. I was told by S&W that they have had ZERO PROBLEMS with the frames of their SD series pistols. I was also assured that they do stand behind their products – something of which I was already aware.

    Any postings of bad frames on the SD series of pistols, and the lack of service on them by S&W, because of such, have to be taken as 100% bogus.

    Way back in the days when S&W was owned by Bangor Punta they had problems. Their service department sucked. I had problems with a S&W model 29 / .44 Magnum during that period. They repeatedly sent me parts for a .38 Special. That was in the mid-1980s.

    Many still believe, and wrongly so, that S&W abides by the agreement made between them and HUD during the leftist, anti-gun Clinton regime. During that period of time, S&W was owned by the Tomkins PLC, a British owned company. As you may be aware, the British people had long before then allowed their government to strip them of their rights to gun ownership. Clinton and the PM of the UK, both anti-gun, were fast friends. Need I say more?

    S&W was purchased by an American owned company, the Saf-T-Hammer Corporation in May 2001. The new owners of S&W told HUD that the deal made by the previous owners, Tomkins PLC, was null and void. S&W is now a very strong supporter of the 2nd Amendment. They absolutely stand behind their products.

    Buy an SD9 or SD40 with confidence. They are solid well made guns. Think about it; if S&W was having issues with any of their pistols and were not servicing them, there would be litigation and it would be a very big story.

  • Dan

    I still do not understand why some people say the Sigma is crap, or its trigger is unworkable. Neither is true. I know that the police in the city neighboring me carries the Sigma in 40S&W. I suspect it is because of budget. A while back, the Sigma SW9VE was purchased by Afghanistan for their National Army, their National Police and their Border Patrol. They are reliable. I know from experience, and not from a post someone else wrote.
    As far as their triggers go, I started out shooting with nothing but double action revolvers, and I learned how to shoot those. I have the Ruger SP101 in .357 Magnum with the short barrel, and it is strictly a DAO. I have every confidence that I can put several rounds into the vitals of a man at 10 to 12 yards. You have to train yourself to shoot what you own. It is an acquired skill.
    They sell quite a few Kel-Tec P-11 / 9mm pistols because that is what a lot of people can afford. Some swear by them. I generally swear at them. I cannot fault another person for their opinion when their wallet does a lot of their talking for them. I just don’t like them, but again, my opinion.
    I always hear about Glocks and how wonderful they are. They are a fine pistol, but they just don’t set in my hand properly. I have to shift it in my hand to line up the sights. That is not a great feature to have if needed in an emergency. When I draw my Sigma, or SD, the front and rear sights are aligned without me having to change my grip. If that occurs naturally, then you have taken a few steps toward accuracy.
    It seems that guns and cars have their die hard fans who cannot see anything past their own likes. I have one Sig, the SigPro 2022 in 9mm. Some will tell you instantly that it is not a real Sig because of its polymer frame. Truth be known, it is the most accurate pistol I own. I hope to buy one in 40S&W next year. Some hate any polymer framed pistols because they claim they are cheap pieces of crap. The XD series is an exceedingly fine pistol (I keep an XD45 Compact on my night stand), as is the S&W M&P, SD and Sigma series. The Glock, and several other makes are good, strong guns. We live in a time of lawyers and litigation. If a manufacturer produces a shabby product that can harm its user, it will be dragged into court. Have you noticed the price of metal framed Sigs? Brother, they ain’t cheap. Has anyone noticed that the only metal framed pistols, not revolvers, available at S&W is a .22 LR pistol, and their 1911 model? Polymer is less expensive, not cheap, and metal that is machined is expensive. Firearm companies are in the business of selling guns. If they cost too much, the customer gets something else they can afford.

    I was looking through the posts and noticed one by CoreyD who said, “… the SD shares no operational parts with the Sigma.” I have no idea where Corey got his information. His assertion is incorrect.

    I had posted here earlier how the magazines from my Sigma 40GVE worked perfectly in my SD40. I had shot over 300 rounds through my then spanking new SD40 from six magazines, the two that came with it, and four for my Sigma GVE40. The body of the magazines, and the springs inside are the same in both the Sigma and SD. The followers and bases are not, but they’ll fit and work in either one.

    After I got to looking, I also noticed that the recoil guide rod is the same length and diameter as the one on my Sigma. Wolff sells a steel recoil guide & springs for the Sigma, which I installed in mine, so soon I’ll buy one for my SD40 too. I also compared the barrels from both models. They are the same. I can place either barrel in either slide. Other than color, they are identical. While the slide was off, I took a look at the frame. The take down latches are the same, as is the trigger and the slide release. Then I looked inside of the frame. The front slide rails and trigger return spring are the same. All of the working parts between the front slide rails up to the sear block are exactly the same. I’d wager they are. Everything about the sear block is different though, even down to the shape of the ejector which is longer, set back further in the frame, and is curved inward instead of standing straight up as in the Sigma. I have the feeling that the sear block of the SD will fit into the Sigma. I may be wrong, but I don’t think so. The pins for the sear block appear to be the same diameter and are in the same position on both. I may have to try fitting it in some day.
    Then there is the slide. The only mechanical difference I can readily see, without a complete tear down, is the extractor, which is completely different. Of course the slides look different externally, but they are they are the same dimensionally. Either slide will fit either frame.

    The way S&W did the SD series, was in my opinion, brilliant. Take the parts off the shelf from the Sigma series, such as the barrel, recoil guide assy., magazine body and magazine spring, trigger assy., slide release, everything except the major components, the frame, and slide, then drop in a new sear block that delivers a smoother, lighter trigger.
    Then start over with the same basic ergonomic shape and design of the Sigma frame, then add a picatinney utility rail. Take the same basic slide, gussy it up by rounding it off here and there, add front serrations, install an upgraded extractor, then cut the dovetails to accept M&P sights to top it off. They must have saved tons of money, by going the route they took. They made a very strong and reliable pistol better by giving it a smoother, lighter trigger. The built in picatinney utility rail is just icing on the cake. An attachment is available to put tactical lights on the Sigma VE models.

    My SD40 shot a tad low for me out of the box. I had mentioned in an earlier post that the SD used the same sights as the M&P. I was going to put Meprolight night sights on it because I prefer both front and rear night sights over front only, but then I saw the Trijicon night sights. The rear sight looked like a Novak. I bought the Trijicon. I replaced the rear sight only, but it was still a tad bit low, so I compared the height of the front sight that came on the SD40 with the Trijicon front sight. The Trijicon was slightly shorter, so I installed it. It put my point of aim and point of impact at the same place – in the bulls eye.
    After having put over 500 rounds of several brands and types of ammo through my SD40, I have had no problems with it. As far as my Sigma 40GVE goes, I can only give praise to the reliability it has shown. I have no accurate idea of how many rounds I have put through it, 1000+ for sure, without a single bobble. It has been 100% reliable. I truly believe the SD40 will give the same dependability. Now all S&W has to do, is make a compact SD. I’d but two in a heart beat, one a 9mm, the other the 40 S&W.

    I hope this post, by someone who actually owns and shoots both the Sigma 40GVE and the SD40, has been of help to someone who is in the market for either. If all you can afford is the Sigma, and you can learn to handle the trigger, you’ll have a solid, reliable handgun with acceptable defense accuracy. If you have the funds to pay a little more, and want a better trigger, then by all means consider the SD.

  • I have to admit.. I think you’re all crazy.. This gun was almost $150 less than an M&P.. and honestly.. being .25″ shorter does make a difference. My dad bought a Sigma, and I bought the SD 2 weeks later. I love this SD. I shoot on a league every friday night. I have had 0 malfunctions with this gun and after 6 months or so, I’ve probably got over 1k rounds through it. It takes any ammo, shoots perfectly straight, lighweight, and it’s my year round carry gun. The trigger is a little stiffer than an M&P but not nearly as bad as a Sigma. It’s the perfect defense gun. Period. Thats why they made it what it is. It’s also a much better construction than the Sigma. More comfortable, and better parts. All the bull shit about it being a newly named Sigma is crap. Its the same size.. they could have easily called this an M&P.. but what would they call it? They already have a M&P40c.. that’s essentially what this would be.. anyway.. it’s a great gun. period.

  • Scott Ellsworth

    Well said Eric. I own the SD9 along with three M&P’s and a Sigma. I got exactly what I paid for with all of them. There’s always going to be haters out there picking guns apart because the brand isn’t “the home team.” And before anyone asks, I own Glocks, XD’s, CZ’s, and Kimbers as well. There’s too much brand loyalty hoop-lah on the internet.

  • Lowell

    I have not shot in over twenty five years. Got the SD9 and right on… my grouping was tight and right where you want to shoot.. 8″ down from the adams apple on the target. Was very pleased with the pull and the sights. did over 100 rounds and loved it.. Very Pleased It’s a keeper.

  • Doug

    I have had a Sigma 9 for 6 years, never fails me. Looks like Glock inside of it. But, never heard of a Sigma “KaBoom”, like the Glock 40. (Oversized chamber and unsupported case head.) Recently purchased a Glock 27 but, have been told I can’t shoot lead, or reloads for fear of a blow-up. (KaBoom that blows the mag out or ruptures the slide.) I would have bought a Sigma Compact if they made one

  • Eddie

    I purchased the SD9 for around $400. This is my first gun purchase. I really wanted an M&P but since this is a home defense gun I couldn’t justify the extra $130 to upgrade to the M&P. I chose S&W mainly because of their history and name. I view this purchase as a Honda Accord of guns, not the most expensive, not near the cheapest, but rather reliable and practical.

    I did not opt for the home defense kit because I did not like the lock box.

  • M. Schulman

    I went to a gun show this weekend and after looking over all the overpriced stuff at the show, went to a local Pawn shop and spotted a like new S&W SD9 with Case and two – 15+1 Clips for $300.00 and could not pass it up. The gun shoots every bit as good as my XD-45 and will be a great carry gun. This is the gun to find at Pawn shops for a great price!

  • jon

    I love the last comment about it being sad that an american company rebranded a pistol to sound more croatian. What part of SD standing for “self defense” dont you understand?

  • Matt

    I paid a little over 400.00 for my SD9. Takes everything I feed into it. Accurate enough for me to hit center mass every time. Carry for my job. I personally love the fact it feels great, looks good, shoots good, and still was affordable for me. Not to mention it fits the m&p blackhawk holster.

  • I am looking for a steel guide rod assembly for my S&W SD9 9mm. Can a Sigma guide rod be substituted?



    • Noah,

      This is what you need right here. This is exactly what I got for my SD 40 and it has been flawless. Not sure if you’re plastic rod has snapped yet, but mine did and that’s the main reason I went here, that and they have the best springs out there. Make sure you get the spring AND rod together as the stock SD spring from a broken plastic rod does not fit these stainless rods. Makes your SD 100% more reliable and I think the recoil is a bit better too… I suggest the standard spring weight personally just because if that’s how S&W Tuned the gun, that’s how i think it should be. Hope this is helpful!


      • Thank you Eric. I suppose I should has added that despite the fact my plastic rod has not failed, I just feel more comfortable with the steel rod like the one in my S&W 5906 that I bought new in 1996. I bought the S&W SIGMA 4IN recoil guide rod & STD Spring 18LB. combination from Wolff, stock # 53618, listed as standard for the SIGMA. The steel rod and spring both fit O.K., but the spring seems awfully strong. When I talked to the Wolff tech representative he was totally non committal for liability reasons. So I guess my next step is to test fire it to see if everything works and is properly balanced to feed and eject, etc. without further adjustments. Any suggestions or recommendations would be appreciated by this novice. It is a delightful little gun to carry and handles 115 grain +P JHP Corbons like a champ.

      • Daniel

        I bought a steel guide rod and factory load-rated recoil spring of 18Lbs for a Sigma in .40S&W I had. I had no problems with them.
        When I bought my SD40 I switched guide rods and springs with the one I had bought for the Sigma. I have shot between 500 and 600 rounds through the SD40 without a hiccup. I bought them from Wolff Springs.

        Another thing you need to know, is that the magazine for the Sigma 40 works perfectly in my SD40. The metal body of the magazines, as well as the springs, are identical to each other. The only differences between these magazines is the follower and the magazine base. I fired the first 300+ rounds through my SD40 using the 2 that came with the SD40, and the 4 magazines that I had for the Sigma 40 in one setting without any problems.
        Two other things that might be helpful to you, is that the sights for the SD series is the same as the ones for the M&P, and the Fobus paddle holster for the M&P also fits the SD series as well as the Sigma series.

      • Very good info. I too have a spare mag that I bought for the Sigma series when I first got my SD as there were not spare SD mags available. (I got the very first SD in the shop). And I was going to agree with the spring and rod assembly that the standard weight for the sigma is the same weight rating for the SD and it works flawlessly.. The only problem I have with it, is reassembly. Getting the rod to go all the way foward without shooting the spring one direction or the other.. I wish there was a way to make it easier to reinstall the spring and rod like it was with the factory standard was.