16 inch M4, 4150v QPQ AR-15, 1:7 Carbine Barrel
This barrel is the benchmark of a hard use standard 16” AR-15 barrel. 4150v machine gun barrel steel with a QPQ coat ensures this barrel will last up into the very high round count areas and resist corrosion and the elements. 1:7 twist rate and a carbine gas system will function on a wide range of ammo for a very long time.
Material Type: 4150v CroMoly Steel
Muzzle Thread: 1/2x28
Twist: 1:7 (Ideal for 62grain ammo)
Gas System: Carbine
Coating: QPQ Treated
Chamber: 5.56 (Will shoot 5.56 or .223)