Ruger RXM Threaded Barrel Kit 4.5" 9mm 1/2x28

Genuine Ruger factory threaded barrel kit for RXM pistols originally equipped with 4" non-threaded barrels. Features factory-manufactured alloy steel barrel with black nitride finish and 1/2"-28 threading that accepts any Class 2A muzzle device. Kit provides optimal fit and function with quick and easy installation requiring no gunsmithing.