Pistol-format M&P 15-22 with an 8.5-inch barrel, brace, and 25-round magazine. NFA-compliant pistol. Type: Pistol Action: Semi-Automatic Caliber: .22 LR Capacity: 25 Year introduced: 2015, USA Weight: 5 oz Overall length: 28" Status: Active Intended use: plinking, competition, suppressor