Product Description
This M4-style barrel, measuring 14.5 inches in length, includes a permanently pinned and welded Extended A2 "Birdcage" Flash Hider, resulting in an overall length of 16 3/8 inches for legal use with standard semi-auto rifles. It features M4 contouring for grenade launcher compatibility and M4-style feed ramps on the barrel extension. The package also includes a Barrel Nut, Front Handguard Cap, Stripped Front Sight Base, and Bayonet Lug. Constructed from 4150 Chrome Moly Vanadium cold hammer-forged 11595E Steel, the barrel is chrome-lined in both the bore and chamber and finished with Black Manganese Phosphate for rust and corrosion resistance. It is CHF rifled with a 1:7 twist rate (RHT), ideal for stabilizing bullets ranging from 50 to 77 grains.