WMD Guns Barrel Features The WMD Guns Barrel is machined to a medium profile and chambered in 9mm giving builders a durable replacement option for pistol caliber carbine and AR-9 style builds. A 1:10 twist rate is matched to common 9mm bullet weights supporting stable flight for a wide range of factory and reloaded ammunition. The .750 inch gas port size is sized to work with gas-operated 9mm platforms that rely on proper port diameter for reliable cycling. At 7.5 inches long the barrel offers a compact length suited to pistol and short-barreled carbine configurations. Finished with WMD s black Nitride coating the barrel gains improved resistance to heat and corrosion compared to a standard finish while also presenting a clean consistent black appearance. Threaded 1/2x28 the barrel is ready to accept common 9mm muzzle devices or a compatible suppressor without additional machining. WMD Guns produces barrels and components in-house using a team of metallurgists chemists and plating engineers giving the company tight control over quality and finish consistency. This barrel gives 9mm builders a dependable Nitride finished option backed by WMD s in-house manufacturing process. WMD Guns Barrel Specifications Manufacturer: WMD Guns Model: Barrel Caliber: 9mm Barrel Length: 7.5 Color: Black Twist Rate: 1:10 Thread Pattern: 1/2x28 Finish: Nitride Available At: GrabAGun