The M&P15-22 Compact is a compact pistol configuration of the M&P15-22 platform with a shortened 8-inch barrel and compact overall length for easy transport. Uses the same blowback action as the full-size M&P15-22 and the same proprietary .22 LR magazines. Designed for range fun and training at close distances where the full rifle configuration is impractical. Type: Pistol Action: Semi-Automatic Caliber: .22 LR Capacity: 12 Year introduced: 2018, USA Weight: 4.5 oz Overall length: 22" Status: Discontinued Intended use: Sport Shooting, Plinking