ALG Defense Quality Mil-Spec Trigger (QMS)

$65.00
SKU:
ALG-QMS
Stock Status:

1. Performance Advantages for the Shooter
The ALG Defense QMS trigger pull is smoother than a stock trigger. This is accomplished by honing the sear surfaces smooth while not removing metal below the valleys of the stock surface finish.
Sear geometry has not been changed from standard so the high reliability that the stock trigger is known for is unchanged.
Trigger and hammer are made from true 8620 alloy steel military specification castings, correctly carburized, quenched and tempered for high surface hardness.
Disconnector is 1070 High Carbon steel properly Austempered into the spring range of hardness
Springs are corrosion resistant and meet military specifications.
A full force hammer spring is used for positive ignition of all type of ammunition.
Trigger and hammer pins are improved over stock mild steel by using 4140 Chrome-Moly steel that has been quenched and tempered. Pins are centerless ground to a fine finish and a diameter 0.001 larger than stock to reduce play in the trigger assembly while retaining a slip fit into the weapon lower receiver.
Pull weight is above the U.S. Military minimum pull weight of 5.5lbs but does not reach near the upper limit of 9.5lbs. Generally, the pull weight is about 6.5lbs.

2. Advantages for the Armorer
The ALG Defense QMS trigger is an enhanced standard trigger so maintenance and installation procedures are unchanged.
There is spare parts commonality between the QMS and stock triggers
Trigger assembly parts may be interchanged between triggers, there are no matched sets.
Since it is a trigger meeting the U.S. Military trigger specifications for the M4 Carbine, the ALG Defense QMS can be substituted for lower performing stock triggers while still staying in compliance with Unit or Departmental requirements.

 

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

35 Reviews

  • 5
    Awesome

    This is the third ALG QMS I've bought, and every one I get it surprises me how amazingly smooth the break and reset are.

  • 5
    QMS trigger.

    Excellent product!

  • 4
    ALG Trigger

    ordering was simple and the order was easy to track using the email confirmation sent by bravo. the install was easy using the slave pin that was included. the trigger pull was crisp but very heavy

  • 5
    Smooth

    Smooth, clean release, easy installation.

  • 5
    Purchase

    Spot on with timely delivery. Works great!

  • 5
    Satisfied customer.

    What I ordered was everything that I expected and look forward to do more business with you guys in the near future.. Thanks

  • 5
    Nice and smooth

    I just installed this in a S&W M&P15. Very nice pull, has to be down near 5.5-6 pound pull. Better than any trigger I had while I served by far. I can't wait to try the Combat trigger in my next build.

  • 5
    Outstanding Upgrade

    Just installed this in my BCM4, and I'm very satisfied. The stock BCM trigger already felt smoother/better than any other Mil-Spec trigger I've used, but after installing the ALG-QMS trigger I instantly noticed an improvement. The gritty feel common to most Mil-Spec AR triggers has been almost entirely eliminated, and it is now a consistent and smooth trigger throughout the length of travel.

    Installation was really easy thanks to the included slave pin used to line up the trigger and dis-connector, and for anyone who has never installed a trigger before, the included instructions, which also identified the proper lubrication points and and recommended type of lube to use on the those points (CLP and a quality grease). I used Break-Free CLP and standard weight Slide-Glide, and it feels great, especially for only $45. Definitely a worthwhile upgrade.