I have RIA drawings specifing barrel markings on a brand new USGI rifle and that marking will not be approved. Regretably, I am on travel so I can not post shots on the bolt. It is actually MPC engraved. The only real marking about the carrier is the "C" stamp https://coltpython6forsale46677.snack-blog.com/31196874/the-5-second-trick-for-colt-combat-elite-commander-45-acp