This is a new Fusion Match grade Carbon Steel thick Flange (.120") barrel bushing for the Full size 1911 pistol. Drop in style, made a bit larger at the critical contact points to make a tight fit with the slide and barrel All Machined in the USA on state of the art CNC turning centers. All machined from pre-hardened Bar stock, so Absolutely  No warpage or distortion from after machining heat-treat processes. Black Oxide finished. These are the best that they get....... All made in the USA......