Separate, ultra-hard, spherical, internal ring pivots on its horizontal axis inside the unique, precision-machined bushing. Absolutely prevents barrel spring. Provides the easiest, longest wearing, closest fitting barrel bushing setup available. Models available to fit full-size Government or Commander pistols, in two configurations: Drop-in Bushing/Ring requires no fitting on the O.D. Oversized Bushing/Ring has an oversized skirt that requires turning to fit most slides. I.D.’s of Govt. Oversize bushing skirts are threaded to accept the exclusive Briley Bushing Mandrel that makes turning the O.D. in a lathe simple and fast. Comm. Oversize Bushings are not threaded for use with the mandrel.
SPECS: Bushing - 17-4 stainless steel. Ring - 17-4 stainless steel, titanium nitrited to Rc 60. Drop-in - .698" (17mm) O.D. Oversized - .703" (17.8mm) O.D. Bushing Mandrel - Stainless steel, 2" (5cm) long. To select correct bushing, measure barrel O.D. and select Bushing/Ring .001" larger than barrel O.D.
Catalog page 93