Lead & Steel AR-15 5.56mm Threaded AR Barrel 12.5in Government Carbine Length 1-7 Twist 1/2x28 Nitride Black

Lead & Steel AR-15 5.56mm Threaded AR Barrel 12.5in Government Carbine Length 1-7 Twist 1/2x28 Nitride Black. 56mm barrel dimpled is fully stress-relieved and 11 target crowned with a gas nitride finish. The barrels are ported conservatively. Paired with a heavy buffer you may experience stoppages with underpowered steel-cased ammo. To guarantee reliability with all ammo types use a standard carbine buffer + spring and run the system with a magazine of full power M193/M855 if new before shooting steel. After an initial 30rd break in steel-cased ammo can be used without issue. Specifications for Lead & Steel AR-15 5.56mm Threaded AR Barrel: Manufacturer: Lead & Steel Color: Black Finish: Nitride Fabric/Material: 4150 Chrome-Moly Vanadium Steel Caliber: 5.56mm Flutes: No Gun Make: AR Platform Gun Model: AR-15 Weight: 1.15 lb Firearms Threads Per Inch: 1/2x28 Features of Lead & Steel AR-15 5.56mm Threaded AR Barrel Lead & Steel AR barrels are made from 4150 Chrome Moly Vanadium with QPQ Corrosion Resistant finish Dimpled barrel to ensure proper gas block alignment Package Contents: Lead & Steel AR-15 5.56mm Threaded AR Barrel What firearm models does the manufacturer say Lead & Steel AR-15 5.56mm Threaded AR Barrel is compatible with? The manufacturer suggests that Lead & Steel AR-15 5.56mm Threaded AR Barrel is compatible with AR-15Lead & Steel 103253: AR-15 5.56mm Threaded AR Barrel 12.5in Government Carbine Length 1-7 Twist 1/2x28 Nitride Black