The One Horse Complete Upper Receiver 5.56 NATO 10.5" with BCG and Charging Handle is a compact AR-15 upper built around a 10.5-inch medium-profile barrel, pistol-length gas system, and 10-inch M-LOK handguard. The nitride-finished bolt carrier group and standard charging handle come installed, creating a ready-to-run assembly that pins directly onto any mil-spec AR-15 lower receiver.

This upper is well suited for short, handy builds intended for range use, training, or general-purpose defensive setups where maneuverability and reliability matter. The free-float M-LOK rail offers ample space for lights, grips, and other accessories while keeping weight down, and the 1:7 twist barrel stabilizes a broad range of 5.56 NATO loads. Thoughtful design and consistent machining from One Horse result in a straightforward, dependable upper that integrates cleanly into existing AR platforms.

Key Features:

• Manufacturer: One Horse
• Model: OH-CU02 Complete Upper Receiver
• Caliber: 5.56 NATO
• Barrel Length: 10.5"
• Barrel Profile: Medium
• Gas System: Pistol
• Handguard: 10" M-LOK Free-Float
• Muzzle Threads: 1/2x28
• Bolt Carrier Group: Nitride Finish, Included
• Charging Handle: Standard, Included
• Receiver Style: Complete AR-15 Upper