Faxon Pistol Barrels for Glock® 43 / 43X (G43 / 43X) are 100% manufactured in-house. These barrels are made with stress-relieved 416-R stainless steel (Match Series) or 4150 CMV steel (Duty Series), then coated with black Nitride of PVD. This helps increase lubricity, barrel life, and resistance to surface wear. We conventionally rifle our barrels to allow for a wider range of ammunition that can be used, including cast lead. Our barrels drop into factory-spec slides with no gunsmithing required. A more consistent, tighter lockup than OEM is possible with our better-than-factory tolerances. Check out both our threaded and non-threaded barrel options for G43/43X.