When AR owners step up into the AR 308 world to shoot today's popular short-action cartridges like the .308 Win. Or the 6.5 Creedmoor, there can be a bit of a learning curve that isn't present in the AR-15 world. However, one element short-action AR owners won't have to worry about is their bolt-carrier group, thanks to the ODIN Works AR 308 Bolt-Carrier Group. This ODIN Works AR 308 Bolt-Carrier Group is designed to work with any cartridge designed around the .308 Win. case head, and one of the highlighted options on this BCG is the use of a smaller-diameter firing pin and firing-pin hole that aids in the performance of these higher-pressure cartridges. The BCG works in all AR 308 rifles, including the DPMS pattern. The unit is also treated with a low-friction, black-nitride fini