Gun Review: Sig SB15 Pistol Stabilizing Brace Review

If you are like me, you remember seeing the Sig SB15 a while back and thinking “hey they hacked the NFA”. Of course we all know how it is supposed to be used, but let us get real and look at this objectively: Sig made an “arm brace” and got ATF approval for said arm brace. The arm brace slides over a pistol buffer and looks like a stock… but it is an arm brace. Well, regardless the internet is abuzz with the legality of using the brace as a shoulder stock and whether or not you would suddenly be in violation of the law, but I sure as heck am not writing the ATF’s Firearm Technology Branch to ruin it for everyone. Anyways, instead of risking breaking the law I asked my friend CJ if we could put a pistol buffer on his registered AR15 SBR (this explains the foregrip as well) and test this thing out by using it as both an arm brace and a stock. So here goes.

Installing the SB15 is incredibly easy, as it slips right onto a pistol buffer and if so desired you may use the Velcro straps to cinch it up to your arm.



I must admit that with this thing on my arm made me feel a bit like Megaman, and when firing it the recoil feels… funky. I really do not know how to describe it but the recoil impulse seems to run up and down your arm.

IMG_1479  IMG_1486

Regardless of the strap though it just did not feel quite right. You really need to turn the gun sideways to aim it right and it does not relieve much weight. It is quite difficult to hold steady as well, and even my buddy CJ agreed (and he is a much bigger man than I).




Either way we both agreed that this rig was incredibly uncomfortable and at the very least impractical as can be. You see, I have shot AR pistols with the padded buffer on my cheek and my off hand on the forend and I find this to be more comfortable than Sig’s awkward arm brace. It is also inaccurate. Here I was aiming for the spot on this target where the bottom of the top rectangle meets the top of the diamond from about 10 yards away:


So yeah, that’s that but lets get real and see how well this bad boy functions as a shoulder stock. The answer to that is quite well, and this gun being an SBR I am sure that I was well within the confines of the law!

First and foremost I got rid of the straps albeit I suppose you do not have to do this. Also for giggles we put on an SAS Arbiter suppressor.



The rubber the brace is made of is very comfortable and is almost like having a giant recoil pad on the back of your gun.




So all in all, I would say that at Sig’s price of $140 before shipping/taxes you would be better off paying a little extra to just SBR your gun (unless your state or country prohibits such a thing). But nonetheless the Sig SB15 is an expensive solution to a problem that I was not aware existed.

Alex C.

Alex is a Senior Writer for The Firearm Blog and Director of TFBTV.


  • Lance

    Fine if you want to make action movies but not really for real tactical situations.

    • Very true—–

      • mig1nc

        I thought this was the dumbest thing ever until I handled one that had been pulled back a little bit so that it was basically an entry stock.

        There was practically no difference between it and my other ARs when used this way.

        If I did choose to use it as a “stock” I would definitely carry the ATF letter in my gun case to show the cops if I ever got questioned.

        I will say the SIG pistol this thing comes with is crazy heavy.

  • smerpd

    I thought this would be good for disabled veterans and folks who are missing limbs, I was wrong.

    • Alex C.

      I thought that too, but to that group of people who would like to remain active in he shooting community I would recommend a conventional pistol or rifle with a bipod. However if you are missing an arm, the SB15 still makes it quite difficult to shoot one-handed due to so much weight being away from your body.

      • wetcorps

        Also reloading might prove troublesome once the rifle is tied to your arm ^^’

        • Matt

          Or even charging the weapon

          • ridgeback2011

            I think if someone who has lost their arm is using this thing to shoot, he’s gonna need some help anyway.

          • Matt

            That was my point

      • ridgeback2011

        There’s a picture of a vet shooting it over on I think if a disabled vet wants to shoot an AR pistol and this helps him then why try and recommend something else…in fact why not try and promote something new like this to get those guys shooting again? They’re fun guns to shoot with low recoil on a platform that any vet is familiar with. Anything can be misused…you’re article makes that point quite eloquently. I’ve tried the SB15 at the local gun shop and what you’ve omitted (or simply dont want to admit) is that using the brace when shooting the gun with one hand is way way better than trying to shoot the gun one handed without the brace. You dont like it or dont need it? Dont buy it…but bashing something designed for wounded vets seems a bit much.

        • Alex C.

          I did not buy it. The folks at Sig sent it to me to evaluate and give honest opinions about their product. I did so in my article. If I do not believe in or like a product, I am not going to lie to the readers here or compromise my journalistic integrity. Also, I do not believe this was designed from the ground for wounded veterans. It was designed to make money.

          • ridgeback2011

            I appreciate your integrity and it was never in doubt with me….but here’s the link to the guy that designed it:
            Just an FYI before you let cynic side take over and in case you hadn’t seen this before. I dont think anyone ever thought that it wouldn’t be a money maker…but it’s good to see that it was someone outside of Sig who invented it and who’s intentions seem to be those of actually helping people out.

          • Alex C.

            I do not believe myself to be a cynical person, but I do believe that the product was designed with a financial incentive in mind. Besides, I am not exactly sure how a one armed man or woman would:
            1. Strap this device on.
            2. Charge the firearm.
            3. Change magazines.
            4. Remove the velcro straps when done.
            Appealing to people’s emotions by citing this device’s potential use by individuals missing seems to have worked well however.

          • ridgeback2011

            I dont believe any product for that matter is designed for the glory of it all. Everything from Aspirin to wheelchairs to prosthetic devices are designed with financial motive. Writing your articles and enforcing your “journalistic integrity” have financial incentive in mind too. But again…your cynicism shines through by not even having the imagination or forethought that each of your points can be overcome by someone missing an arm. I have an SB15 and just did all 4 of your point with one arm.
            1. Strap this device on: With one arm I found the correct size I would need without having to re-velcro the strap.
            2. Charge the Firearm: With the gun leaning on my kitchen counter top (It’s roughly the same height as a gun range counter top) I leaned the buffer tube onto my stomach and charged the weapon (while on safe).
            3. Change the magazines: I have an ambidextrous mag release, so easy enough with my pointer finger. Slide my arm out, place another mag in, and depress bolt release. Then slide arm back in.
            4. Remove the velcro straps when done: You dont have to remove the velcro straps. Once you’ve found the right size for you, the straps dont need to be touched again, and sliding in and out of the brace is simple.
            All of these steps in fact are thoughts that someone less than able would have to think through. I think you’ve done the easy job, which is appealing to peoples cynic side…especially in this internet world of people who can find the worst aspects of the best intentions.

          • mbrd

            damn dude, you seriously need to get off of your ivory kitchen counter.

            you’re viewing this thing through a somewhat different lens than alex c., and he’s responding to you in a reasonable manner, defending his journalistic integrity and the reasonability of reporting from his perspective. you, on the other hand state that you respect, and do not doubt his integrity, then proceed to bash it.

            if you want to participate constructively, just state your positive experiences with the product, and the contrasts you’ve drawn with the reviewer’s experience– you don’t need to start right off by challenging his motivation.

          • ridgeback2011

            I’m sorry you feel that way mbrd. I consider myself a pretty cynical
            person too and it’s for that reason that I find it hard to believe that
            “journalistic integrity” was involved…I explained why point by point
            above. I received my SB15 about 3 weeks ago and stand by my ideas and points previously stated. The photo of the big guy up there “seemingly” having a tough time shooting and lining up his sites is a total act. Since when does anyone shoot a “pistol” with one hand like that anyway?? If you use your supporting hand and shoot like you would any other pistol, there is no problem at all lining up the sites. You do have to cant your head more than usual, but with my canted red dot site i get perfect lineup. We can discuss weather or not people will actually shoot the gun that way and thats a whole other can of beans, but if you do want to shoot an AR pistol as you would a pistol, using the SB15 is a metric Sh*t ton easier. Have you tried the SB15 yet? What were your impressions?

          • mbrd

            by the way, i consider myself a pretty cynical person.

          • Cymond

            Of course his intent was to make money, but that doesn’t prove hat he didn’t also genuinely want to fill a need for the disabled.
            In 2009, quadriplegic James Cap took his local police chief to court over a denied permit to buy a firearm. At issue was Cap’s desire to go hunting with assistance, using a breathing-tube to fire the gun. Cap won the right to purchase a firearm, and to hunt with assistance.
            Most of us wouldn’t call that shooting but it’s the best he can do. If he is so determined to hunt that he’s willing to put up with that, then I damn well believe guy with one arm can manage to load an AR pistol, charge it, and then slip his arm into a pre-adjusted brace.
            I nearly lost my left arm in September, 2005. That November, I decided that I wanted my first pistol to commemorate my 21st birthday (since I don’t drink). While shopping, one store didn’t have any pistols, so I was browsing rifles just for the heck of it. A salesman handed me a bull-barreled rimfire rifle and I nearly dropped it because my left shoulder was still weak. Fortunately my stepfather caught it before the muzzle hit the floor. At the time I feared that I would never regain enough strength and mobility to shoot a rifle. Even to this day, I don’t have full mobility in my left shoulder, and can only shoot a rifle in a bladed stance. I can’t stretch my arm straight out in front of me.
            The point of this story is that have a little understanding how they would feel. I appreciate how fortunate I am to be able to shoulder a rifle at all. If I had lost my arm (or lost much more mobility in my shoulder), then my shooting options would be limited to conventional pistols, and maybe ultra-short SBRs.

          • Michael B

            I just lost all respect for you and your ‘reviews’. I hope this little stretch of comments makes it to the desks and email of anyone responsible for deciding to send you anything for T&E in the future.
            You say, “I am not going to lie to the readers here or compromise my journalistic integrity. Also, I do not believe this was designed from the ground for wounded veterans. It was designed to make money.” You just accomplished both through your ignorance of this product’s roots.

  • Axel

    So basically this product is only useful as a “stock” for “pistols”?

    • Pretty much so yes and only the AR

      • Tim U

        Atlantic Firearms is selling an offering of the Sig 556 pistol with this brace pre-attached. I wonder what legal issues exist, if any, for non-AR pistols.

      • fstgnz1972

        I was at a range in florida and watched a whole bunch of wounded vets use this product the way it was designed and was able to try it too. They had an eotech mounted on a 45 dgree rail and were making easy hits out to 50 yards no problem. I didn’t see anyone sticking out their arm the way you guys shot it. It wasn’t super comfortable, but if you shoot the gun one handed, it was a metric Sh1T ton better then shooting it without. Not to mention it makes the gun look a whole lot better.

  • floppyscience

    Just some food for thought.

    Definition of “rifle” from 26 USC § 5845: The term “rifle” means a weapon designed
    or redesigned, made or remade, and intended to be fired from the
    shoulder and designed or redesigned and made or remade to use the energy
    of the explosive in a fixed cartridge to fire only a single projectile
    through a rifled bore for each single pull of the trigger, and shall
    include any such weapon which may be readily restored to fire a fixed

    Definition of SBR from NFA: The term ”short-barreled rifle” means a rifle having one or more barrels less than sixteen inches in length and any weapon made from a rifle (whether by alteration, modification, or otherwise) if such weapon, as modified, has an overall length of less than twenty-six inches.

    An AR pistol is not “designed or redesigned, made or remade, and intended to be fired from the shoulder” when an “arm brace” is attached, as the brace is designed and intended to be used to fire one-handed. There’s nothing in the definition about how the rifle is actually used, just how it’s intended to be used. This is why people aren’t arrested for installing rifle buffer tubes and foam caps on their AR pistols and shouldering them. The arm brace is not a stock, so unless you modify it somehow with the intention of making it a stock it will never be a stock.

    Note: I am not a lawyer, this is just what makes the most sense to me. As for now I don’t see anything written in the law or any legal precedent saying that how a “pistol” is used can make it an SBR, it has to be designed and intended to be fired from the shoulder.

    • Mystick

      I would think this same logic would apply to the “pistol carbine” setups…. they would retain their former class(being defined as a pistol)… but it seems they do not, for some twisted reasoning within the ATFE.

      That being said, I don’t see how this device actually changes the functional characteristics of it being an “SBR”… the rules for SBR don’t mandate mode of operation, stance, presence of a stock of any kind, or handedness – only two aspects of the physical dimensions of the firearm.

      • gunslinger

        i say no. the “carbine” attachement (for say a glock) is intended to be used as a rifle. it is intended to be fired from the shoulder. so that’s why it’s a no-go.

        whereas @floppyscience:disqus stated, this product is intended and designed as an arm brace, to fire when attached to the forearm, not the shoulder.

        my thoughts, not a lawyer

      • floppyscience

        As gunslinger said, a pistol conversion is designed, made, and intended to be fired from the shoulder. That’s what makes it an SBR. A pistol arm brace does not fulfill such requirements.

      • Cymond

        Putting a stock on a pistol clearly makes it “a weapon designed
        or redesigned, made or remade, and intended to be fired from the
        shoulder.” Hence, it is a SBR unless you add a barrel over 16″ and bring it to a 26″ total length.

        Or are you referring to the true carbine conversion kits, like the MechTech? ATF formerly considered it illegal to install a pistol frame, and then reinstall the pistol barrel. However, ATF changed their opinion on that in late 2011. See “2011-4”

  • JT

    When they make this for glocks…

  • N

    You might, give the VFG, want to look up the ATF’s definition of “Any Other Weapon,”

    • Alex C.

      I said the rifle was an SBR twice in the article. We could have put four foregrips on the thing, taken a photo, and sent it to the ATF with “na-na na-na boo-boo” as a caption and still not have broken any laws.

      • that-guy

        With all due respect as this is a well written article, an NFA registered firearm cannot be converted to an NFA category other than the one it was registered to be without removing it from the NFA registry then re-registering in the new category. Profoundly stupid, I know, but consider…

        If it were possible to change the configuration of an NFA item and ‘call it good’ just because it’s an NFA registered item nobody would own SBR’s. We’d all register or buy AOW’s as they have cheaper transfer tax-stamps than SBR’s. This is probably why the ATF gets pissy about people trying to blur lines of classification.

        The situation is reversed here. We have an SBR put into an AOW configuration. Yes, it’s still REGISTERED as an SBR, but it isn’t BUILT as one, as stated in the article. It is built into an AOW by having a pistol buffer tube (no stock, as the point of the article is that the stabilizing brace is NOT considered a stock by the ATF) with a foregrip.

        Another potential situation would be to register an AR-15 lower as an SBR then slap a shotgun upper ontop of it. You now have an SBS, not an SBR, and you’ve built an NFA restricted firearm that does NOT match your approved tax stamp.

        I really, really wish we could do this and I don’t mean to be ‘that guy’, but last I checked the ATF did not allow changing of classifications. I know the authors of this blog do everything they can to be conscious of all the crazy regulations, but I think in the future the omission of a foregrip on a pistol, unless registered as an AOW, is the safest course.

        • CliffK

          The point that you’re missing is that a rifle is still a rifle without a shoulder stock. You can take a stock off a rifle and use it in that configuration provided it stays above 26″ OAL.
          Consider a pistol grip folding stock rifle and the possibilities…removing the folding portion of the stock does not make it an AOW unless it is shorter than 26″ OAL with a barrel exceeding 16″.
          Now consider a pistol with a 16″ barrel.
          They are not classified the same, though they might look identical in layout and function.
          With an SBR, the concept continues, except that there is no 26″ OAL limit nor is there a barrel length limit.
          Therefore, you can have a 1″ OAL SBR and it is still an SBR, regardless of whether it has a stock or not.
          There are no laws against using a VFG on a rifle, and therefore no laws against using a VFG on a short barreled rifle.
          You’re just confusing yourself.
          You know, the type that get all worked up over something they don’t understand and twist reality until it makes sense.
          Yes, you are in fact, “that guy”.

    • Tim U

      Proof that you didn’t actually read the article at all. Before you complain and try to come off as a smart-ass know it all, at least have the decency to read it first.

      By trying to be the know-it-all, you proved to be the fool today.

    • Read it a bit closer please sir

    • Cymond

      First, yes, they used a SBR.

      Second, go look at the Franklin Armory XO-26. It is an AR platform with 11.5″ barrel, 16″ total length, and a vertical forward grip. ATF has determined that it is legal. It is neither an AOW nor a pistol, it is simply an unclassified “firearm”.

  • mechamaster

    Uh-oh… But this kind of ‘wrist-stock’ doesn’t make user skin scratched and got irritation because of straight-back recoil tendency of AR-type ?

  • Joseph B Campbell

    Sorry, My mind drifts to Disney’s cyborg where he just pops off one attachment and throws on a SBR and continues his mission.

  • LRB

    the fact that it costs $140 and really isnt that great of a brace, if you were buying this to try and skirt the NFA on SBR’s I would say just drop $200 on your Form 1 tax stamp and make a legit SBR.

    • Alex C.

      I agree 100%.

    • Tim U

      Unless of course you live in one of the states that don’t allow SBRs.

      Or you don’t like the idea of waiting for over a year to get to have your firearm assembled.

      Or you don’t like the idea of being more of a target than you already are as a gun owner.

      Or you want the ability to sell it relatively quickly instead of having ATF forms to fill out and another year long wait when you have decided you want to try a different gun out.

      There’s plenty of reasons to skirt the NFA if you really wanted to.

      • LRB

        I agree on the problem of states and SBR’s, thankfully I don’t have that problem but I can see this helping in that area.

        As far as waiting a year, and the issue of privacy go form an NFA Trust. Its 100% worth it if you are getting into the NFA item world. Once you get an SBR or suppressor you are going to want another one. Wait times for Trusts are down around 6-7 months and since the item is purchased by the trust no individual is tied to the item, there is no LEO signature, no background check, no fingerprints or photos on the form 4 or 1.

        Given the penalties I don’t think there are reasons to skirting the NFA. Maneuvering around your state laws I can agree on.

        • Guest

          “given the penalties” ATF said it’s legal so what penalties are you speaking of?

        • ARluv

          No reason to skirt the NFA and yet you are using a Trust to buy your NFA guns. Hmmm. There has been a lot of talk about these trusts and how they might not be so legit….whereas the SB15 has a letter from the ATF stating that it’s completely legal? Who’s skirting the laws again?

  • Good review, and pretty much what I expected when I first saw this accessory. Kind of gimmicky, kind of useless.

  • Thatguy96

    “You really need to turn the gun sideways to aim it right and it does not
    relieve much weight. It is quite difficult to hold steady as well…”

    And suddenly we’ve introduced all the problems of the Colt IMP/Bushmaster Arm Pistol for no good reason.

  • Lolinski

    You guys are missing the point. AR’s are cool and gangsta style shooting is cool. Gangsta style with an AR is logically twice as cool.

    • gunslinger

      yo dawg…

  • Clint Notestine

    solution to a problem that shouldnt exist

    • Alex C.

      Well, I did not think it was possible to “win” The Firearm Blog’s comment section, but you sir have done so for today.

      • FourString

        Great write up, I was looking forward to this review for a while. It seemed a lot cooler in theory. Thanks for giving us the practical implications.

        Also: Did you also notice how in the SIG promo videos, the shooters were getting 1″ groups? lolol

        • FourString

          Also: “So yeah, that’s that but lets get real and see how well this bad boy functions as a shoulder stock.”
          This turning point in the article made my heart pitter patter.

        • Shootergirl1978

          My husband bought this for me just the other day. I have to admit I didn’t know what the brace thingy was for at first. But after he showed me I was easily getting 1 inch groups at 25 yards. Why didn’t you guys just shoot it with one hand supported and cant your head over just a tad….worked great for me! I guess us girls are just better than you guys at shooting! 😉

          • FourString

            maybe there is method to the madness

  • Mike F Di


    • Cymond

      Read the article, they put the brace on a registered SBR, so there’s no legal violation. And besides, I seriously doubt the ATF is completely unaware that some people will shoulder these SB-15s. After all, that’s all anyone has talked about since it was announced.

      • Mike F Di

        your talking LOGIC..I am talking POLITICS

        • JT


  • Jeremy Star

    The whole strapping it to your arm thing made me not even look closely at it when it was released. A sling that allows me to drop my primary weapon to grab my backup while retaining possession of the primary? Yes. Something strapped to my arm that would take me any time to get out of? Oh, hell no.

    • Matt

      Don’t have to use the straps.

  • rVLn4

    i think sig needs to tighten up on it’s rifle production. it isn’t quality like it should be for the price you pay.

  • Leigh Rich

    LOL what a stupid ideal. May be good for a prostetic arm however…

  • Damon

    there is a problem. its a 9 month wait problem. and for some of the more paranoid its a problem for those who dont want to feel like they are on record for owning a particular gun

    so for those reasons this is an actual solution. and its 100 times better than shooting off of a buffer tube.

  • Frank

    I have an SB15 installed on a pistol and really enjoy using it. Don’t knock it until you try it folks. I have had no problems with getting rounds on target and in decent groupings. Perhaps the author of this article just isn’t that great of a shot…

  • dmitri

    I could see this from some clown niche company like mako group but sig?
    Come on guys.
    Great write up, man! Im glad you took the time to give us a practical demonstration.

  • BOB

    “So all in all, I would say that at Sig’s price of $140 before shipping/taxes you would be better off paying a little extra to just SBR your gun” you say this without reviewing the shooting qualities as a stock, all you said was it was soft and like a giant recoil pad. You didn’t talk accuracy, ease of targe acquisition, practicality, nothing, just ‘squishy’ and then you tell us we’d be better off sbr’ing without any explanation why. You flaked out.

    • BOB

      Nevermind, I’ve found some reviews from guys who have the balls to say the truth. This brace works excellent in unconventional applications. Nose to the charging handle.

  • ARluv

    What you don’t seem to understand is that this product is designed and intended to be used as a brace. I bought mine at the NRA show a few months back and as a brace it works just fine. I just wish they made one for my TC contender as well. You dont think the ATF thought this thing would also be used as a stock and simply let it pass before they approved it?? They had to approve it because they cant make decisions based on how something is going to be misused, they make decisions based on intent and design. Not to mention it’s not illegal to shoot a pistol from the shoulder or off your forehead for that matter. Does the buffer tube of an AR pistol become all of a sudden a stock and therefore illegal because you’re shooting it from your shoulder? Does a pistol become all of a sudden a firearm by definition because you’re shooting it with two hands? Does a bipod on a 10/22 charger pistol all of a sudden become a Vertical Foregrip and therefore require an AOW $200 tax stamp if I used it that way??? It’s a new product and a novel idea…and there is no other product like it on the market to even compare it to. It can be improved and with time I think it will be…but lets try to keep our minds open to these kinds of products….it’s good to see that there are still people that think out of the box.

  • JT

    I think this product is pretty revealing of the firearms community. There is nothing illegal about shouldering this. There is little to no utility in this across a mass market except as an NFA loophole. And yet people are afraid to start shouldering the thing. The ATF has rules that it does not make the ATF a rifle. Stop being squeamish and self-censoring yourselves.

    • JT

      I was going to add, if people started shouldering it and it got banned, it’s not like it has a lot of utility beyond shouldering it. You’re not going to “ruin it” for everyone. Unless you choose not to do so, so that the original user and others like him can have the product, that would be different

    • Surveillanceop

      Just as holding the magwell doesn’t make it a vertical grip, shouldering a brace doesn’t make it a stock.

  • anonREPUBLIC

    So get an tax stamp n be infringed or use this “in the intended way” and have a dangerous firearm that doesn’t hit what your aiming at?…..thanks a a lot ATF Communists!

  • Revolver Ocelot

    What the hell is with all these assholes who sound like they are more for the ATF than the people??? This is on the talk forums also. Some arrogant douche starts spouting off about how stupid it is and how desperate they are that it be made illegal. Its like they enjoy being under the nazi jack boot of tyranny.

  • Michael B

    Do you research a product completely before commenting? Were I Sig Sauer and the inventor of the this product, who, after witnessing his disabled combat veteran friend being asked to leave the range because the RSO thought he was not safely handling his weapon, developed this product; your credibility with me would be shot.

    I hope this little stretch of comments makes it to the desks and email of anyone responsible for deciding to send you anything for T&E in the future.

    You say, “I am not going to lie to the readers here or compromise my journalistic integrity. Also, I do not believe this was designed from the ground for wounded veterans. It was designed to make money.” You just accomplished both simultaneously through your ignorance of this product’s roots.

  • Leftnut

    Looks to me like you converted a Rifle “SBR” in to a Pistol for this article ….. pretty sure that isn’t legal!!!!!

    • Cymond

      If removing a shoulder stock changes the classification of a firearm, then every person who has ever changed the stock on a 10/22, AK, or pump-action shotgun has manufactured an unregistered SBR. Seriously, my 10/22 with 18.5″ barrel is only 24″ OAL with the stock removed.

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  • ColaBox

    Wow that is a very sleek hand guard. Barrels a bit short for my taste, and the brace seems odd but very nice rifle in general.

  • sig brace mr blond

    this thing works around the paperwork. most pistol buffer tubes are way to tight for it. i used the one from kak industry and it was perfect and extended also so i don’t bash my nose on the charging handle

  • O.G.

    Be careful, according to the B.A.T.F. removal of the securing straps defeats the purpose of the “brace” and then classifies the brace as a buttstock, turning the AR pistol into a SBR.

    • Cymond

      I’d like to see you cite a source for this.

      • Steve Truffer

        They mention “any modification whatsoever” might disqualify the product.

        • Cymond

          Where do they mention that? Also, any modification MIGHT disqualify the product, but it might not. It varies from case to case, so I’d like to see something more clear.
          I still advocate for caution, and am not suggesting that it’s a good idea to remove the straps. Heck, I’m a little nervous about even the KAK tubes with the ridge to extend the length of the SB-15. However, I still plan to buy a KAK tube soon, even before I buy a SB-15.

  • Victor

    The advantage of using this stabilizing brace as a makeshift stock is that you don’t have to register your SBR with the ATF. So, theoretically, they don’t know you have one.

  • MenotYou

    Haven’t used the brace myself but might it work better if you use a proper shooting stance? I’m no expert or anything but shouldn’t you be using two hands and your shoulders squared? Or a maybe a boxers stance? Like I said Im no expert. Is it not possible to use the brace in such a manner or is there some benefit to standing sideways and just using one hand? Not trying to be critical. I just don’t understand why they are shooting a pistol in such a manner. Maybe they know something I don’t.

  • FinallyFree

    Forward vertical grip on a pistol is illegal….

    • You are right. Good thing I mentioned it is a registered SBR several times.

    • Cymond

      Also go read about the Franklin Armory XO-26.

  • Cascadianarchist

    The reason that I’d choose this over an SBR is twofold: being from WA SBRs are not currently legal (though this is going to change soon, from what I hear) and secondly the laws surrounding weapons in vehicles here dictate that longarms cannot be left *loaded* in your car no matter if its concealed or the car is locked, or even if you are currently in the vehicle. However, if you have a concealed pistol license, you can have loaded *pistols* in your vehicle, and this would allow you to have what is essentially an sbr in your vehicle in a ready to go state, rather than having to rely on traditional handguns that are currently the only option for loaded in-vehicle weapons.

  • Bob

    You guys just committed a felony when you put a fore grip on that pistol.

    • Steve Truffer

      You just commited an act of illiteracy. READ. THE. FIFTH. PARAGRAPH. S-B-R.

    • Cymond

      And go research the Franklin Armory XO-26!

  • Hey!
    Nice work guys. Although I could never really figure out, but after reading the
    article, it seems quite obvious how the arm brace will restrict the motion and
    angle of recoil, and cause a delay in shooting. This thing might look good in
    super hero movies, although I can’t say much about its practical use

  • steve miller

    OK – I have a sig556P – have yet to shoot it though. Let’s play a little devils advocate here – what is the over all length by the time you put on the grip – what do you have a 10 in barrel 223. Price tag – $1300 for the pistol, plus $120 for the grip and then you need a tube – another $50 – so your up to $1500 + for this. I just picked up a Tavor for $1650 – 16 inch barrel and is about the same length, but you get a 16 inch barrel instead of a 10 inch barrel. I might still pick one of these up but also might just sell my 556P and buy another Tavor.

  • Rob

    adding a vertical fore grip to a pistol is also illegal, might want to pull these pics before you get snagged.

    • gunslinger

      First paragraph, fifth sentence in.

      “Anyways, instead of risking breaking the law I asked my friend CJ if we could put a pistol buffer on his registered AR15 SBR (this explains the foregrip as well)…”

      good thing it’s not a VFG on a pistol

    • Cymond

      Gunslinger is right. Furthermore, I would STRONGLY recommend researching the very-legal Franklin Armory XO-26

  • dredsen

    you reccomend to your readers to comply with nfa registration rather than give sig 140$

    shame on you.

    also the atf has ruled using a sig brace from the shoulder is 100% ok.

    • Steve Truffer

      This was posted prior to the intent letter. Until then, no one was sure whether such a thing is legal.
      The author recommended that people err on the side of caution. He was covering his ass from the stupidity of others.
      Your ignorance, arrogance, and asinine comment are the only things shameful here.

  • jimmy

    Its a clever way to get around paying the tax stamp which many see as infringment to their rights. As another said, this is a solution to a problem that shouldnt exist. There is no reason for a required length to a rifle. The rifle is no more dangerous than before so why does it have to be a certain length. Also If I did illegally sbr a rifle do you know how long it would take me to just rig a stock onto a ‘pistol ar’, no time at all. The law is stupid and makes no sense.

  • AlDeLarge

    It looks to me that almost every complaint he has about it would be solved by loosening the straps some. I get the impression that the straps are supposed to limit, not eliminate wrist movement. Something that worked the way they’re using it would have to have a lot of adjustments to be able to get it just right. If you set this just loose enough, so the correct wrist angle for you is right at the limit of movement, you’d have a consistent grip angle and greatly reduced muzzle flip.

  • flip migglesworth

    that brace don’t make it an sbr, but that foregrip sure does…

  • Wes Brozek

    Foward grip on a pistol? Thats an AOW….

    • Dan

      Except the first paragraph says that the receiver they’re using is a registered SBR… so, no it’s not.

  • LordPorter_1

    what kind of buffer tube is that? what is the extension length, it looks long like 4.5″