Ballistic Advantage 14.5" 5.56 M4 Profile Carbine AR-15 Barrel w/ FSB Circular Cap and Delta Ring Assembly 1:7 Twist

We had these made for us with a pinned FSB using a Circular Handguard Cap. This means that this barrel is compatible with most carbine length drop-in handguards. Get one with a VG6 Epsilon pinnable Muzzle Brake for a 16" overall length. Barrel Specs Brand Ballistic Advantage Length 14.5" Chamber 5.56 NATO (shoots both 5.56 NATO and .223) Profile M4 Finish QPQ Nitride Barrel Steel 4150V Chrome Moly Twist Rate 1:7 Gas System Length Carbine Length Gas Block Journal .750 Feed Ramp Extension M4 Muzzle 1/2 X 28 Weight 25oz