ONE HORSE 300BLK COMPLETE UPPER RECEIVER W/MEDIUM PISTOL BBL FOR AR-15
Build a compact, hard-hitting AR platform with this .300 Blackout complete upper receiver, designed for reliability, maneuverability, and close-quarters performance. Fully assembled and ready to install, this upper is an ideal solution for pistol or SBR configurations where compact size matters.
At the core is a 300 Blackout barrel, optimized for strong performance in shorter barrel lengths while maintaining excellent energy and versatility with a wide range of bullet weights. The compact design makes it well-suited for suppressed or unsuppressed setups.
The M-LOK free-float handguard provides a slim, lightweight profile while enhancing barrel stability for improved accuracy. With multiple attachment points, it offers flexibility for adding lights, grips, or other essential accessories.
A nitride bolt carrier group ensures smooth, reliable cycling with enhanced durability and corrosion resistance, while the included charging handle completes the package for true plug-and-play convenience.
Built for compatibility with standard mil-spec AR-15 lowers, this upper is ready to pin on and run right out of the box.
FEATURES
- .300 Blackout Barrel – Compact, powerful performance optimized for short platforms
- Short-Barrel Configuration – Ideal for AR pistols, SBRs, and suppressed applications
- M-LOK Free-Float Handguard – Lightweight and modular with improved barrel stability
- Nitride Bolt Carrier Group – Durable, corrosion-resistant, and low maintenance
- Compact & Maneuverable – Perfect for confined environments and fast handling
- Full-Length Picatinny Rail – Ready for optics and accessories
- Mil-Spec Compatibility – Fits standard AR-15 lower receivers
- Made in USA – Built with quality materials and dependable craftsmanship
WHAT’S INCLUDED
- Complete upper receiver assembly
- 7300 Blackout barrel
- M-LOK free-float handguard
- Nitride bolt carrier group (BCG)
- Charging handle
- Barrel nut and mounting hardware
SPECIFICATIONS
- Caliber: .300 AAC Blackout
- Gas System: Pistol-Length
- Rail: Picatinny top rail
- Compatibility: Mil-Spec AR-15 lowers
- Country of Origin: USA
Threaded Barrel Restriction:
Threaded Barrels have restricted shipping to CA.
WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov
