True Precision Ruger RXM 9mm Luger Threaded Pistol Barrel 4.5 inch 1-10 RH Twist Copper. 9" RXM 9mm models. TRUE barrels deliver unmatched accuracy combining advanced cuts chamfers and feed ramp designed to outperform OEM standards and to ensure reliable feeding of all types of ammunition designs. Their proprietary stainless steel broach cut rifling underscores their commitment to those who demand only the best. The TRUE barrel stands as the definitive Ruger RXM upgrade - Experience American-made precision performance and style. Specifications for True Precision Ruger RXM 9mm Luger Threaded Pistol Barrel: Manufacturer: True Precision Fabric/Material: 416R Stainless Steel Barrel Length: 4.5 in Caliber: 9mm Luger Barrel Material: 416R Stainless Steel Gun Make: Ruger Gun Model: Ruger RXM Package Contents: True Precision Ruger RXM 9mm Luger Threaded Pistol Barrel What firearm models does the manufacturer say True Precision Ruger RXM 9mm Luger Threaded Pistol Barrel is compatible with? The manufacturer says that True Precision Ruger RXM 9mm Luger Threaded Pistol Barrel is compatible with Ruger RXMTrue Precision TPRXMBXTC: Ruger RXM 9mm Luger Threaded Pistol Barrel 4.5 inch 1-10 RH Twist Copper