The Tac-Con™ 3MR trigger assembly with an ambidextrous selector is compatible with weapons using AR-10 & .308 small pin .154" mil-spec style fire control groups. And ALL AR-15 5.56 style weapons.
The 3MR is a drop-in 3-mode fire control system with Safe, Semi-Automatic, and Tac-Con™'s patented 3rd Mode. The 3rd mode has a positive reset that dramatically reduces the split times between shots. The positive reset characteristic is achieved by transferring the force from the bolt carrier through the trigger assembly to assist the trigger back onto the front sear. As a result, this gives the firearm the fastest reset possible. Both semi and 3rd mode positions exhibit a non-adjustable 4.5 pound trigger pull weight.