NEW: JMT Single-Stage Sabre AR Trigger

Rainier Arms has just announced a new single-stage trigger for the AR platform from James Madison Tactical in Richland, Washington. JMT has designed the Saber to be a sleek but functional drop in trigger with a 3.5-4.0 pound trigger pull weight.

There are no shortage of AR trigger options on the market, so a quality review is required to get an idea on the Saber’s performance. But at a sub $90 street price, the potential is there for real value.

JMT Sabre Trigger @ TFB

JMT Sabre Trigger @ TFB

With a fast reset, a smoother, crisper, lighter trigger pull, The single-stage trigger group is easy to install.

  • Single-stage
  •  3.5- 4.0 lb. pull weight
  • Quick reset for faster response time between shots
  • Lightened trigger pull with super-crisp release to improve accuracy
  • Curved skeleton trigger function and comfort
  • Self-contained design makes it easy and quick to install with no fine-tuning needed
  • Quality 17-4 Stainless steel hammer, trigger and disconnect
  • Precision CNC and EDM machined from high-grade 6061-T6 aluminum and 17-4 ph SS
  • Contained in JMT’s signature metallic silver anodized aluminum housing
  • Note: The set screw should not be tampered with. Any attempts to modify the trigger will void the warranty.

Rainier Arms: Saber Trigger


Rainier Arms: Saber Trigger


Rainier Arms: Saber Trigger


Rainier Arms: Saber Trigger

MSRP: $99.95

Street: $89.95


Rainier Arms –

James Madison Tactical (JMT) –


P.O. Box 374
Richland, WA 99352


LE – Science – OSINT.
On a mission to make all of my guns as quiet as possible.
Twitter: @gunboxready
Instagram: @tfb_pete


  • Joe

    At that price point…I’m interested.

    • raz-0

      At that price point, it just has to be decent compared to the drop in trigger crowd as it is a small price increase over the polished coasted mil-spec type kits form ALG, BCM, etc.

      My main concern would be given the steel involved, what’s the heat treat like. If it isn’t properly through hardened, you owuld wind up with problems like the very early CMC drop ins that were all recalled.

      • PK

        I wouldn’t worry about 17-4PH being an issue when used in a FCG like this. Annealed, it’s C35, and it very likely is hardened to the H900 standard for about C45.

        While not quite as hard as 4140 treated to C48 or harder, or case hardened mild steel as traditionally done, you might be surprised how slick 17-4PH gets. It’s unlike older stainless alloys which could be quite prone to galling.

  • Hoplopfheil

    That’s actually a price that makes me consider it.

  • thedonn007

    I wonder if they are paying Mossberg for the patent?

    • Pete – TFB Writer

      I typed out that exact line and deleted it…

  • Marcus D.

    Does it have hex screws in the base of the case to tighten up the pins? A useful if not entirely necessary feature.

    • thedonn007

      Not 100% necessary as you can use anti walk and anti rotate pins to retain the trigger group.

      • Marcus D.

        Yes, as I said, not entirely necessary, but all of the high end models now come with them, and it is a more elegant solution. Two internal screws that will never disappear versus a bunch of small parts on the outside of the receiver.

  • AJ

    Anyone in Canada who carries these? Perhaps put it up on Brownells so we Canadians can get it too?

  • Marcus D.

    On sale now at Rainier for $89.95. I may have to pick one up, as I am about to move from a polymer lower (80%) to a Spike’s (simply because it will be easier to “register” the latter as an “assault weapon” in the next year when the new law in California goes into effect). I have an ALG QMS which is very crisp but heavy and thought it’d be a good time to upgrade.

    • OBlamo Binlyen


      • Marcus D.

        A new California law goes into effect on 1/1/17. Back in 2000, they banned the future sales of ARs by brand name and by features, requiring, for one, that the mag had to be fixed so that it could only be removed by the use of a tool. Well, the brilliant work-around was the Bullet Button, which requires a “tool” (namely the tip of a bullet) to operate the mag release, and this complied with the law at that time. The new law, designed to yet again try to ban all AR and AK style rifles from California, not only bans the Bullet Button (requiring a “featureless” build–but there may be a work around that as well) but requires that any bullet button equipped rifles be registered as “assault weapons” by a date certain. The consequence of a rifle becoming an “assault weapon” is that it cannot be transferred to anyone in the State of California, except to the police for destruction, by gift, sale or bequeath. (It can still be sold out of state–but as I understand it, it cannot be even advertised for sale in California for sale out of state. Again, the purpose is to eliminate “evil black rifles” over the course of a generation or two. And of course, the penalty for illegal possession of an unregistered “assault weapon” is a felony. Cute, huh?

        • Anonymoose
          • PK

            More like kawaii-o.

        • MarcoPolo

          They’re coming for all of us, don’t forget to vote.

        • Frank Grimes

          That sounds like a really fun law to ignore.

          I don’t recall seeing anything about serial numbers or registration in the Second Amendment.

          • Marcus D.

            It comes right after the clause that says “subject to reasonable regulation by the States and by the Government in the interest of public safety, including but not limited to…” Did you miss that part? Oh wait…it took a court to find that clause.

        • OBlamo Binlyen

          Yes I am aware of the illegal ‘law’.

    • Mitch

      Why not go featureless?

      • Marcus D.

        The three commercial featureless rifles are the Ruger Minis (which locks you out of swapping uppers) and the Ares rifle with its rat-tail BCG, which has been reviewed as having a lousy trigger.. The only other option is a very weird looking stock that allows you to use a regular upper and lower but looks absolutely awkward, kind of like an AR pistol with a stock on it. That’s it, AFAIK. This is the intended result: the purpose of the law is to outlaw ARs and AK sales, banning transfers, and resulting over the course of a generation in the elimination of all such rifles from the state.

  • noob

    Has anybody thought of making an entirely self-contained, solid state, epoxy potted, tamper resistant drop in competition electronic trigger pack for the ar-15?

    You could have a solenoid actuated hammer and your trigger pull could be infinitely adjustable. Maybe batteries in the pistol grip, feeding power to the receiver via the pistol grip retaining screw?

    • Anonymoose

      And then if the battery dies you would be SOL in an emergency situation…might be nice for a competition racegun, though.

      • PK

        Just as with the idea of using an Aimpoint and BUIS, perhaps a mechanical override trigger would be in order.

    • PK

      Yes, and the battery pack and electronics go in the grip. Neat stuff, but I don’t think any of the prototypes went to market.

      The closest thing out there, and the one to really look at, is for the 10/22 although the brand escapes me at the moment.

      The most appealing aspect of electronic triggers is a perfect trigger pull while having the grip and trigger anywhere you’d like. Bullpups would be extremely simple to put together, at that point.

  • Slab Rankle

    Guys, just pony up for a Geissele SDC (or SSA) and be happy! I did. The trigger is no place to cheap out on an AR. Your life may depend on it and Geissele is simply the best.

    The quality remains long after the price is forgotten.

    • Pete – TFB Writer

      I’m a Geissele guy myself, but there’s always hope for innovation. Whether it’s a G trigger or not…

      • PK

        Exactly. Keeping an open mind isn’t a terrible thing at all, and although I find it unlikely to replace my preference I think I’ll be giving it a try.

        At the least, it’s competition for other drop-in packs, and might be as crisp or perhaps nicer than those costing $150 or more. One way to find out for sure…

        • Frank Grimes

          The cost of this trigger plus the cost of the junky KNS pins to install it costs MORE than the LaRue MBT.

    • PK

      I hear you on Geissele, they’re my go-to. That said, I’ve been surprised how nice some of the cheaper (in comparison) drop in units have been in the past few years. For a truck gun or ranch rifle, saving a couple hundred dollars is quite appealing.

      For a bench rifle or 3 gun matches, this new offering would have to be truly outstanding for me to stop using Geissele in my builds.

    • El Duderino

      I hear you loud and clear. Though there’s nothing wrong with a G2S for around $150 either.

  • PK

    At $90, it seems worth a try with those specs.

  • Mark Horning

    Still don’t understand the appeal of Single-Stage triggers…

    • Marcus D.

      I have never understood the allure of two stage triggers. Then again, I don’t think I’ve ever shot one. Why do you like take-up instead of a clean break? For me, a four pound trigger (like in my 1911) is just about perfect. I think one of my 1873s is a bit lighter, but the point is I know exactly the point where it will fire–meaning immediately. I have a single state ALG MQS which has a crisp break, no take-up and a very short reset. Its only weakness is a 7 lb (or more) trigger.

      • Mark Horning

        Even a 1911 usually has a little take up. The AR-15/M-16 is the first military rifle I can think of with a single stage. M-14, M-1, M1903 (and A3) were all 2-stage for a reason.

        • Marcus D.

          On my Kimber, the slack, which is hardly a “stage”, can be adjusted out. Mine came from the factory with a millimeter at most of “slack.” (I actually measured it.) What was the reason that military rifles were two stage, and why should I care, as I am not going to war? So, and back to my original question, what is the allure of a two stage trigger?

          And to make a finer point of it–please correct me if I am wrong–the first stage takes up a portion of the trigger pull weight, leaving the second stage very light indeed. If you are shooting rapid fire, e.g. three gun, will you even feel the two stages, or instead will you just pull through it the same as a single stage?

  • Frank Grimes

    Any trigger that requires those goofball KNS type trigger pins is junk.

    No quality trigger maker requires KNS trigger pins on their triggers and they specially recommend against using them.

    A trigger that requires KNS pins to retain it is a good indicator that that trigger should be avoided,

    • tb556

      Do you think every rifle made by POF is garbage?

      • Frank Grimes

        Is that a real question?

        Because the answer is absolutely.

        But POF has way more issues to worry about than their silly trigger pins.

        This discussion isn’t about 3rd rate piston operated AR15s this is about poorly designed triggers.

        My comment about top tier trigger manufacturers not using and, more importantly, specifically stating to NOT use KNS type trigger pins still stands.

        • tb556

          I’m just curious since they all use kns pins. I don’t own a POF gun, but I’ve never heard of widespread issues with them or issues with their triggers so if like to know the basis of your claim.

          • Frank Grimes

            They all use KNS pins and none of those companies are reputable or offer quality products, so that should be a clue.

            But I have seen countless broken KNS pins that snapped in the middle, I have seen the tiny little hex screw head snap off in the middle of a string of fire and the the pin walk out and shut the rifle down hard.

            I have never seen an issue with regular boring trigger pins.

            CMC used to use a very tight fitting pin that was retained by a tiny C-clip, it was a bit corny but it had no real issues. I was extremely disappointed to see they’ve now switched to, not even KNS pins, but a cheap KNS style clone. Utter trash.

          • tb556

            Do you have any photos? They look way too beefy to break. I can’t find any pics online. Thx.

          • Frank Grimes


            What kind of weirdo goes around photographing things they don’t give a crap about?

          • tb556

            It’s hard to believe someone I don’t know with unsubstantiated claims on the internet. I have not read anything similar to what you are claiming so I’m simply asking you to provide evidence to the board. What you say might have happened but I’m not going to believe it until I see evidence.

          • Frank Grimes

            I could not care less what you think, buy whatever crap you want to buy. I don’t have videos of all of the “Leapers SWAT” scopes I saw that wouldn’t hold zero, does that mean Leapers makes “SWAT” grade scopes?

            But remember, no maker of quality triggers uses or recommends KNS pins in their triggers.

            Send an email to Geissele and ask them what they think.

            My life is far too important to risk by saving $20 buying a junk trigger that installs with failure prone crap hardware, maybe yours isn’t so I would say rock on and get one of these triggers.

            Maybe a spare set of KNS pins too so you can have a replacement when the originals break, assuming your life wasn’t depending on them.

          • tb556

            Cool, let me know when you have evidence to back up what you’re saying vs. spouting ad hominem at people that question your opinion.

          • Frank Grimes

            Hahahaha. Ok goober. Enjoy your junk.

          • tb556

            Sorry I hurt your feelings! I only deal in facts. I’ll let you know when I start having issues on my junk Sigs, CZ, Beretta and Ruger guns. I can tell you I’ve had 2 stove pipes on my P226 Elite in about 5000 rounds of various ammo and it took about 800 rounds for my A400 Xtreme to start locking back on the last round with target loads. The AR556 only has 750 rounds in it since I’ve only had it 3 months but it groups very well with Swiss Geco and Troy irons. I went with a POF 4.5 drop in trigger at the suggestion from an RO. I like the fact that it drops in and has no set screw or seat springs like the majority of alternative drop in triggers. The only gun in the last 7 years that’s ever given me any real grief is my M1A National Match but that’s probably going to be sold shortly and replaced with a RPR and a Sako 85. The only decision I messed up on was investing almost $3k into an M1A.

          • Frank Grimes

            A low grade piston AR jammed? No way, I am so surprised!

            It’s funny though how you’re trying to be tongue-in-cheek but all you’re doing is stating facts.

            Post-Cohen Sigs are pieces of garbage, Taurus grade crap I wouldn’t take for free. No surprise your pistol failed so much.

            Ruger is cast cheese metal welfare crap, so that’s a given.

            CZ is Eastern European slum guns.

            And anybody who buys semiauto shotguns that aren’t inertia operated shouldn’t be surprised when they have issues.

            Also M1A hahahahahahaha.

          • tb556

            LOL OK, stick with your bankrupt Colt and whatever else you think is the correct answer. You clearly have some sort of personal issues you need to take care of by arguing on the internet. Personally, 2 stove pipes that are more than likely attributed to practice ammo in 5000 rounds is nothing I’m worried about. All semi-auto shotguns have a break-in period especially when dealing with low velocity target rounds, and no, it never failed to cycle rounds. By the way, anyone reading your comments on here knows you’re a joke.

          • Frank Grimes

            Oh no! The Mosin snipers and .22 can plinkers on the internet don’t like me?

            I’m so sad. Seriously I’m crying right now IRL.

            You know what doesn’t require a break in period and functions just fine with bulk target loads? A good shotgun, like the Benelli M2.

            Yeah I know what you mean about Colt though, boy they sure do make an AR that’s way worse than the $525 Ruger. I heard that when Colt produces ARs, they load them into trucks and drive them to Ruger to be worked over by Ruger’s QC department because Colt is pretty clueless when it comes to ARs.

            Hell I heard Bill Geissele is in talks with KNS begging them to consider him worthy enough to use their trigger pins.

            They haven’t replied to him yet because they’re too busy working with Ruger to improve the ARs that Colt sends in.

          • tb556

            LOL good luck dude/gal? Anyone actually reading this tripe, Google M2 cycling issues. You probably love Pmags too. This person doesn’t know what hes talking about.

          • Frank Grimes

            I hate PMAGs and stolen valor cases, so no I like neither of those things.

            Weird that you bought it up though, maybe you’re a secret fan and you trying to get strangers on the internet to validate yet ANOTHER one of your silly thoughts?

          • port

            Geissele uses a proprietary pin size, that’s why they don’t recommend ANY other pins, has nothing to do with your fanboy delusions.

          • Frank Grimes

            What about LaRue?

            Guess we’ve got another Mosin and Tapco fan here, leaping to defend their favorite poorly built welfare trigger design.

            It’s not a proprietary pin size, if that was the case they wouldn’t function because they wouldn’t fit.

            Thanks for playing though!

          • port

            Both Geissele and LaRue have excellent products but they are not alone. Wilson Combat, Hiperfire, Elftmann and several others are right there with them. I know not because I’m some Internet forum fanboy but because I own them and use them. It all depends on the application and purpose.

            Geissele Pins are 0.1550″ diameter. Standard Mil-Spec is 0.1554″ and oversize is 0.1555″. This is from Bill Geissele himself and validated by my own caliper. What fits may also depend on receiver tolerances. Fanaticism should be reserved for sports unless you really enjoy making a fool out of yourself.

          • Frank Grimes


            Thanks for proving my point about Geissele not using or recommending KNS style pins.

            And, surprise surprise, Wilson Combat doesn’t use KNS style pins either.

            Gosh that’s so weird!

            I couldn’t tell you what the Elf Man or whatever trigger is but I know the Hiperfire caters to the bumpfire-into-a-pile-of-trash-at-the-dump crowd and that’s hardly a top tier serious use trigger unit.

            Thanks for playing though, have a swell evening.


    Great Price, but, I’m still looking hard at the Velocity Trigger @ 3#

  • Frank Grimes

    Oh boy, forums!

    A clearly infallible source of factual information posted by competent users!

    That’s weird, I go out and actually get real world experience instead of pleading with strangers on internet forums to reinforce my ideas and choices for me.