37/64 x 28 / .578 x 28 1911 barrel thread and crown protector. It is machined from stainless steel to very high quality standards. It is counter bored to accommodate barrels that are not undercut at the shoulder. It extends over the end of the barrel to protect the barrel crown if dropped. A perfect fit for your 1911.
Length is .525″
Outside diameter is .700 With a clean crisp knurl.
Please confirm your thread size before ordering.
100% made in the USA!