20-inch Bartlein .936 308 Win Barrel w/ 1:10 twist and 5/8-24 TPI
SLR Sentry 9 Adjustable clamp on gas block
Toolcraft Nickel Boron full weight BCG
Put this upper together as a fun build, but it doesn't get much use since I shoot mostly PRS matches these days and 308 isn't really competitive...