11/16 x 24 tpi Barrel Thread protector. It is machined from stainless steel to very high quality standards on CNC lathes in my shop. It is counter bored on both ends to accommodate barrels that are not undercut at the shoulder.
Length is .625″
Outside diameter is .820 With a clean crisp knurl.
100% Made in the USA!
Please confirm size before ordering. Free Shipping with tracking!