Criterion Barrels Inc Ar-15/M16 Hbar Rifle Barrels - 18" Hbar Rifle Barrel W/ Headspaced Bolt

The Chrome Moly AR-15 HBAR contour barrels feature a gas port drilled for a .750 gas block. An indent is provided opposite the gas port to enable easy installation. Also included is an M4 barrel extension. These barrels accept muzzle devices with a...

Brownells