M&P 22 Compact with a threaded barrel (3/8 x 24 TPI) for suppressor attachment. The rimfire platform makes suppressed operation genuinely quiet — a significant training advantage for indoor and suburban ranges. Identical to the standard M&P 22 Compact in all other respects. Type: Pistol Action: Semi-Automatic Caliber: 22 LR Capacity: 10 Year introduced: 2017, USA Weight: 15.3 oz Overall length: 6.65" Status: Active Intended use: Recreational Shooting, Training