The Shadow Systems MR920P/XR920P Compensator and Barrel Assembly is a premium upgrade kit designed for existing MR/XR920 pistols featuring an all-steel compensator with nitride coating and a 4.2-inch barrel in 9MM.Shadow Systems MR920P/XR920P Compensator and Barrel Kit4.2-inch nitride-finished barrel for corrosion and wear resistanceAll-steel compensator with nitride coatingTri-lug style attachment method for quick disassemblySpatially efficient design fits holsters designed for G17 pistolsDrop-in installation kit compatible with MRP/XRP pistolsSeamless alignment with slide contoursThis upgrade assembly transforms your MR/XR920 pistol with enhanced muzzle control while maintaining holster compatibility making it ideal for competitive shooting and tactical applications.