The Angstadt Arms MDP-9 is a usa-made single-action pistol chambered in 9mm Luger, introduced in 2019. Primary use: Home Defense, Tactical, Range. Type: Pistol Action: Single-Action Caliber: 9mm Luger Capacity: 9 Year introduced: 2019, USA Weight: 26 oz Overall length: 7.4" Status: Active Intended use: Home Defense, Tactical, Range