Details
Details
The ALG Defense Quality Mil-Spec (QMS) Trigger is a precision-engineered upgrade for AR-15 platforms, designed for shooters who value traditional mil-spec performance with smoother operation and enhanced reliability. Built to meet U.S. military specifications, the QMS maintains a pull weight above 5.5 lbs, eliminating the grittiness of standard triggers while preserving their legendary dependability. Ideal for duty rifles, armorer builds, or any application requiring mil-spec compliance, this drop-in AR trigger upgrade delivers improved performance without sacrificing regulatory compatibility.
Features:
- Smooth, consistent pull with improved sear surface finish
- Maintains standard sear geometry for maximum reliability
- Constructed from military-spec 8620 alloy steel and 1070 high-carbon steel
- Trigger and hammer pins made from durable 4140 chrome-moly steel
- Pull weight approximately 6.5 lbs, compliant with M4/M16 military standards
- Compatible with standard installation procedures and spare parts
- Corrosion-resistant springs and full-force hammer spring for reliable ignition
- Pins are precision-ground 0.001" over standard to reduce play
- No matched sets—parts are interchangeable for easier maintenance
- Assembled in the USA
Specifications
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.
Ratings & Reviews
60 reviews
Crisp asf
by Joe Mama -
crispiest 60$ trigger sadly its around a 6lb pull weight but on Geissele’s website you can buy a 4.5lb spring fro 12$ good investment
Very Good
by LC53
Like it says on the box, if you want the reliability of a mil spec trigger without the gritty feel this is it. Bought this on sale to replace a stock trigger and what a difference. Stock trigger was so rough it felt like a "3" stage trigger. With this trigger just pull and "Boom". Perfect for a duty rifle.
Good Mil Spec Trigger
by Eric B
It's a well priced OEM style trigger, simple as that. If I want mil spec, I get the QMS or ACT (for a little slicker pull). LPK triggers are always gritty- not this one, and the price is only a little more. If you have the budget, get it. If you don't have the budget then use the LPK trigger. You can always enhance it (properly), and the outcome will be the same.
All You Really Need
by 877 Combat
This is a very reliable direct replacement select grade Mil-Spec trigger. It is a night and day upgrade from a mass produced LPK trigger group. It's perfect for both budget builds and fighting rifles alike. You don't really need a 2-stage $240 trigger if you know how to shoot. My, have people gotten spoiled and snooty as of late. You used to take what was issued to you and learn how to shoot it well, or else! You were grateful to have that. This is a great improvement although all the cool kids who do mag dumps into steel and the dirt at 25 yards don't seem to think so. That is funny, at 500 yards and at 300 meters a bone stock trigger works just fine, let alone this! Know what you are buying and you won't be disappointed.
Not for me
by Kevin
Too much creep, terrible long loud reset. Maybe I got a bad one?
Gritty
by Joseph -
I don't really like it. Very gritty. The good new is that it is better than what I had.
Can't go wrong for a "better-than-basic" trigger
by Templeton Peck -
Great "basic" trigger, so much better than the Mil-Spec triggers that come with most lower parts kit. Very comparable to the BCM PNT or Spike's Battle Trigger for less money. Perfect pull weight for a defense trigger - not too heavy, not too light. Started off crisp and smooth, and just gets better with use. I'd highly recommend for a good, reliable, do-it-all AR.
Millitary Armorer Vet approved.
by Richard -
I’ve used this in at lease 7 of my builds since I found this product. Just ordered 2 more. No not extras. As a millitary trained armoer I like this trigger. The price is excellent and so is the product. No compaint here.
Good trigger for a great price!
by Joe
I don't know how you can beat this trigger for the price. Used it on my first AR-15 build. I have 130 rounds through it now, and that's enough for me to know that it is a smooth trigger that I have no desire to change. Good trigger for a great price.
Smooth and clean breaking with the spring kit
by Dutch
This is one of the smoothest and cleanest breaking single stage triggers I've shot. With the light and spring kit it is a outstanding trigger for the money.