jlynblackmoreRecently ran 90 rounds through this new build to break in barrel and adjust gas. Viking tactical edition BCM 16” factory built upper Sharps bros overthrow gen2 lower BCM bcg/ch and qd end plate Tac con 3mr trigger (Not FRT just short reset Tyrant design take down pins Strike industry bolt catch Magpul stock Milspec mag release, buffer and tube
