The Dead Air Wolf 9SD on common PCC
The solution for those stubborn locks
See the Franklin Armory BFS III trigger in action. This trigger is great for controlled pairs or full magazine (or belt) dumps; while retaining normal firing operation in the second position.
Works in most AR application: AR10 (308 WIN), AR15, MPX, 22LR uppers, 9mm uppers.
9" CMMG 22lr upper, running suppressed on a SBR. This runs fast with the binary trigger and the lack or recoil makes it easy to place every round on target.