Shadow Systems MR920 Elite, Striker Fired, Semi-automatic, Polymer Frame Pistol, Compact, Massachusetts Compliant, 9MM, 4.5 Bronze Spiral and Fluted/Threaded Barrel, Nitride Finish Elite Slide, Black, Optics Ready, Flat Faced Trigger, Trigger Safety, Tritium Front Night Sight, 10 Rounds, 2 Magazines SS-1083 The MR920 is a feature-packed, compact-sized pistol that is designed to work with existing G19 holsters, magazines, and gear. The match-grade barrel is conventionally rifled and spiral-fluted to improve evacuation of debris. MR920s are also available with threaded barrels, for those departments that allow the use of muzzle devices. The drop-safe, flat-faced aluminum trigger has a 4.5-5.0 lbs trigger pull and a crisp, tactile reset. Optic cut models allow shooters to mount the mini red dot optic of their choosing. The optic cut on the MR920 can accommodate most major brands of RDS optics directly mounted to the slide, without intervening plates or adapters. The MR920 Elite model features directional slide serrations in front, rear and topside locations, as well as a weight-optimizing window cut on the side. The slide top is milled with a multi-footprint optic cut to accommodate most optics.