ONE HORSE 300BLK COMPLETE UPPER RECEIVER W/SOCOM PISTOL BBL FOR AR-15 Upgrade your rifle with a versatile 16" .300 Blackout complete upper receiver built for reliable performance, modular flexibility, and consistent accuracy. Designed to handle a wide range of shooting applications, this upper performs effectively with both subsonic and supersonic loads. At the core is a 16" .300 Blackout barrel paired with a pistol-length gas system, delivering reliable cycling—especially when running subsonic ammunition or suppressed setups. This configuration enhances function across various loads while maintaining smooth operation. The 15" free-float M-LOK handguard improves barrel stability for increased accuracy while offering ample space for mounting lights, grips, and accessories. Its slim, lightweight design ensures excellent handling without sacrificing durability. A nitride bolt carrier group provides dependable cycling with added corrosion resistance and long service life. Combined with a full-length Picatinny rail, this upper is ready for optics and accessories right out of the box. Fully assembled and compatible with standard mil-spec AR-15 lowers, this upper is designed for quick installation and immediate use. FEATURES 16" .300 Blackout Barrel – Optimized for both subsonic and supersonic ammunition Pistol-Length Gas System – Reliable function, especially for suppressed and subsonic use 15" M-LOK Free-Float Handguard – Enhanced accuracy with modular accessory mounting Nitride Bolt Carrier Group – Durable, corrosion-resistant, and low maintenance Full-Length Picatinny Rail – Ready for optics and attachments Versatile Performance – Ideal for range, hunting, and suppressed setups Mil-Spec Compatibility – Fits standard AR-15 lower receivers Made in USA – Built with quality materials and craftsmanship WHAT’S INCLUDED Complete upper receiver assembly 16" .300 Blackout barrel 15" M-LOK free-float handguard Nitride bolt carrier group (BCG) Charging handle Steel barrel nut and mounting hardware SPECIFICATIONS Caliber: .300 AAC Blackout Barrel Length: 16" Gas System: Pistol-Length Handguard Length: 15" Muzzle Thread: 5/8x24 Rail: Picatinny top rail Compatibility: Mil-Spec AR-15 lowers Country of Origin: USA
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