The One Horse OH-15 is a semi-automatic AR-platform pistol chambered in .300 AAC Blackout featuring a 10.5-inch barrel, a 30-round capacity, and a black finish, purpose-built for shooters who demand a compact and hard-hitting .300 AAC Blackout platform in a maneuverable pistol format. Built from polymer and aluminum with a KAK pistol brace, it delivers a lightweight and capable close-quarters platform that is equally at home suppressed or unsuppressed. The OH-15 is a serious choice for home defense, vehicle carry, and range use where a compact and powerful 300 AAC Blackout pistol is the mission.