The One Horse OH-15 operates on the proven AR-platform semi-automatic action, delivering reliable and consistent cycling with the hard-hitting terminal performance that .300 AAC Blackout is renowned for in compact barrel lengths. The 10.5-inch barrel optimizes the short-range ballistics and suppressed performance that make .300 AAC Blackout one of the most capable and versatile pistol-length cartridges available in an AR-platform format. A standard charging handle and mil-spec compatible components provide a familiar and intuitive operating experience for any shooter already comfortable with the AR-15 platform. Specifications and Features: Manufacturer: One Horse Model: OH-15 Caliber: .300 AAC Blackout Action: Semi-Auto Type: Pistol Barrel Length: 10.5" Capacity: 30+1 Material: Polymer, Aluminum Finish: Black Brace: KAK Pistol Brace Included Magazines: 1x 30 Round