Faxon Firearms Match Series, Straight Fluted, 1:10 Twist Barrel, 9MM, Fits Glock 43/43X, Threaded 1/2x28, Nitride Finish, Black GB910N43SGQ-T Faxon's Match Series Pistol Barrels for Glock G43 are machined 100 percent in-house from stress-relieved 416-R stainless steel. These barrels are then given a black Nitride or PVD coating to increase lubricity, barrel life, and resistance to surface wear. All barrels are conventionally rifled to allow a wider range of ammunition to be used, including cast lead. The barrels drop into factory-spec slides with no gunsmithing required. Better-than-factory tolerances ensure a consistent, tighter lockup than OEM.