One Horse OH-15 | 300 Blackout | 7.5" | KAK Brace | MLOK | 30rd AR-15 Pistol

The One Horse OH-15 Pistol (MPN: OP06) is a compact .300 Blackout AR-pattern pistol built around a 7.5-inch barrel and KAK brace. The short configuration keeps overall length down while retaining standard AR controls, detachable magazines, and the accessory flexibility expected from the OH-15 platform.

One Horse lists this model with a medium-profile barrel, 1:8 twist, carbine-length gas system, A2 muzzle device, and 7-inch handguard. A standard charging handle, Mil-Spec buffer tube, A2 grip, and 30-round magazine complete the core configuration. The pistol is manufactured in the United States and provides a short-format .300 BLK option for buyers who prefer a compact AR-style platform.

Key Features & Capabilities

• 7.5-Inch .300 Blackout Barrel: Compact barrel length for a short overall package.
• 1:8 Twist: Factory twist rate selected for the .300 Blackout platform.
• Carbine Gas System: One Horse’s listed gas configuration for this short pistol.
• 7-Inch Handguard: Provides a compact gripping and accessory-mounting area.
• KAK Brace: Rear brace configuration distinguishes this complete pistol package.

The OP06 is a practical choice for shooters looking for a short .300 Blackout AR pistol without moving into a longer 10.5-inch configuration. Browse tactical pistols or shop ammunition at Recoil Gunworks.