Down Range Products 9mm M13.5 x 1 Left Hand Barrel Thread Protector. Black. Grooved #4006

9mm M13.5x1 Left Hand barrel Thread protector. It is machined from US made steel to very high quality standards on CNC lathes in my shop. It has a grooved outside for a cool look. It is finished with a durable black oxide finish. It is designed for metric threaded barrels. Will fit Glock , Heckler and Koch, Beretta and more. Length is .525" Outside diameter is .740. Please confirm your thread size before ordering.