PISTOL: MASTERPIECE ARMS MODEL DEFENDER 9MM - PISTOL IMPORTED BY MA, SERIAL NUMBER FX66585, SEMI - AUTOMATIC, 9MM STANDARD, BLACK (MATTE), CASE NOT INCLUDED, 4.5" Notes: Masterpiece Arms Defender 9MM Pistol Description: Type: Semi-automatic pistol chambered in 9x19mm (9mm Luger). Size: Compact pistol configuration; dimensions vary by specific Defender model. Capacity: Uses detachable magazines; capacity varies by configuration. Features: Blowback-operated design, metal construction, fixed sights, and threaded-barrel configurations on some variants. Weight: Varies depending on the specific Defender configuration. Design: Compact pistol platform featuring a distinctive tubular receiver and modernized styling. Summary: The MasterPiece Arms Defender 9mm is a compact semi-automatic pistol chambered in 9x19mm. The Defender name covers multiple configurations, so specifications such as dimensions, magazine capacity, and weight can differ between individual variants.