Compact K-variant MPX with 4.5-inch barrel, shortened handguard, and folding mechanism. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 20 Year introduced: 2015, Germany Weight: 56 oz Overall length: 18.5" Status: Active Intended use: Close Quarters, Law Enforcement, Law enforcement / personal defense / vehicle ops, Suppressor Host, NFA/SBR, Tactical