.154" Hi-Speed Service Trigger M4, AR15
Designated Marksman Rifle (DMR) model combines the light first stage of the Match trigger with the heavier Service second stage to reduce risk of premature release in high stress situations. Perfect for precision tactical and competitive shooting where trigger pull is not regulated. Allows a high rate of semi-auto fire; an experienced shooter can fire 30 rounds in as little as 4½ seconds. First stage, 1.3 to 3 lbs.; second stage, ½ to 1½ lbs.
Fully adjustable trigger gives a smooth, two-stage pull with a precise "icicle sharp" break and ultra-fast lock time to minimize accuracy loss caused by gun movement during trigger pull. Set first stage pull weight by bending the legs of the trigger spring; set second-stage weight within a pre-set range by turning its adjustment screw. Another screw on the trigger lets you adjust overt-ravel for clean, crisp let-off. Lightweight hammer provides a 50% reduction in lock time over factory hammer, yet uses standard weight hammer spring to ensure sufficient energy transfer for reliable primer ignition, even on AR-style .308 weapons. Trigger shoe is positioned 1/8" farther forward than factory shoe for comfortable finger position during the squeeze. All contact surfaces are wire EDM cut to exact dimensions for full, precise engagement free of unwanted play.
Steel, black finish. Available for receivers with .154" (military, current aftermarket, older Colt) hammer and trigger pins. Kit includes trigger and hammer assemblies, plus oversized hammer pin, compact pin punch, three hex wrenches, tube of GA No. 1 grease, bottle of GA No. 2 oil, and complete illustrated instructions.