Iver Johnson .380 PONY IN 380ACP, it's most commonly the X300 Pony .380. Specifications Model: Iver Johnson X300 Pony Caliber: .380 ACP Action: Single-action, locked-breech semi-automatic (similar in concept to the Colt Mustang) Magazine Capacity: 6+1 rounds Barrel Length: 2.75 inches Weight: Approximately 18 ounces Frame: Aluminum alloy Slide: Steel Barrel: Steel