WMD Guns .308 Win 18in Light weight Profile 1-10 Twist ML RH 4150 CrMoV Nitride Black

WMD Guns .308 Win 18in Light weight Profile 1-10 Twist ML RH 4150 CrMoV Nitride Black. Barrel has a Nitromet nitrided bore treatment for longer life than chrome without affecting accuracy. Barrels are made of 4150 CrMoV chambered for .308 Winchester button rifled with 1-10 twist rifling and machined to a light or standard medium weight exterior profile. Gas port drilled for a mid length gas system .750in diameter at the gas block. 5/8in-24 threads on the muzzle end. Comes with a NiB-X coated barrel extension installed to help the bolt unlock exceptionally smoothly especially when used with a WMD NiB-X coated bolt and complete BCG (available separately). Specifications for WMD Guns .308 Win 18in 1:10 Twist Nitromet Barrel: Manufacturer: WMD Guns Color: Black Finish: Nitride Caliber: .308 Winchester Barrel Length: 18 in Gas System Length: Mid Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 5/8x24 Barrel Twist Rate: 1-10 Barrel Material: 4150 Chrome Moly Vanadium Gun Make: AR Platform Gas System Type: Blowback Gun Type: Rifle Projectile Caliber: .308 Caliber Package Contents: WMD Guns .308 Win 18in 1:10 Twist Nitromet Barrel WMD Guns 308B18M1-10LP: .308 Win 18in Light weight Profile 1-10 Twist ML RH 4150 CrMoV Nitride Black