Ed Brown Thread Protector .578"-28 Thread Steel Nitride

Ed Brown Products Thread Protector For 45 ACP SR Barrel Black Nitride. Thread size is 0.578 x 28 tpi RH on the 45 ACP barrels and 1/2 x 28 tpi RH on the 9mm barrels. Specifications for Ed Brown Products Thread Protector: Manufacturer: Ed Brown Products Color: Black Nitride Package Contents: Ed Brown Products Thread Protector Ed Brown Products 925-TP-BN-45: Thread Protector For 45 ACP SR Barrel Black Nitride