The Standard barrel thread protector 5/8 x 24 thread is machined from 303 stainless steel to very high quality standards on CNC lathes in my shop. It is counter bored to accommodate barrels that are not undercut at the shoulder.
Length is .625″
Outside diameter is .730 With a clean crisp knurl.
This thread protector works on most AR10 .308, 7.62, .300 Standard barrels and variants.
100% Made in the USA!
Please confirm size before ordering.