This Bear Creek Arsenal AR-15 5.56 NATO Complete rifle has a 16" M4 barrel
with a parkerized finish, and features a 1:8 twist, with a carbine length gas
system.
This Bear Creek Arsenal AR-15 Complete 300 blackout rifle has a 16" heavy barrel with a parkerized finish, and features a 1:8 twist, with a carbine length gas system. The upper includes the new 15 1/4" mlok rail, a BCA Bolt Carrier Group, Flash Hider, and a rear charging handle. This 300 Blackout complete rifle comes with a mil-spec AR-15 forged lower.