Glock 17-compatible duty variant from Shadow Systems. Optics-ready, fluted barrel, ported slide, and all the duty improvements of the MR920 in a full-size package. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2020, USA Weight: 22.4 oz Overall length: 7.9" Status: Active Intended use: Duty, Service