Mk Carbon: (BLEM) Steel Breech Plug

These breech plugs are blemished. May have machining burrs, cosmetic issues, or dinged up corners. Functionally still perfect.

This is the steel breech plug for the Mk Carbon tube upper for Ruger Mk series pistols. This is designed to mirror the factory measurements for the breech face of a Mk Pistol. Designed to be secured inside a tube upper with an internal diameter of .75”. Machined in steel. Ready for coating, epoxy, etc.