.45 caliber 37/64 x 28 or .578 x 28 Threaded barrel protector. It is machined from US made 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 .460″
Outside diameter is .710 With a clean crisp knurl.
Fits Lone Wolf and Storm Lake Aftermarket Threaded Barrels and other brands with a 37/64 x 28 or .578 x 28 thread.
Please confirm your thread size before ordering.