10.5″ .300BLK Phosphate Pistol M-LOK Heavy Upper Assembly

10.5″ .300BLK Phosphate Pistol M-LOK Heavy Upper Assembly

Compact Power, Built to Perform – Engineered for the .300 Blackout Advantage

Whether you're building a reliable range gun or a duty-ready platform, the 10.5″ .300BLK Phosphate Pistol M-LOK Heavy Upper Assembly delivers uncompromising performance in a compact footprint. Designed with precision and durability in mind, this upper features a rugged, heavy-profile barrel and a streamlined M-LOK handguard for modern accessory mounting. The pistol-length gas system supports both subsonic and supersonic loads for versatility across a range of applications. Built using trusted components like a mil-spec forged upper receiver and nitrided A2 flash hider, this assembly is torqued and treated with premium materials to ensure lasting reliability. Whether for suppressed builds or hard-use scenarios, this upper is engineered to deliver sub-MOA performance when paired with quality ammo and technique—and it's proudly made in the USA.

Specifications

• Barrel Finish: Mag Phosphate
• Barrel Profile: Heavy
• Cartridge Compatibility: .300 Blackout
• Barrel Length: 10.5″
• Gas System Length: Pistol
• Twist Rate: 1:7
• BCG / Charging Handle: Not Included
• Handguard: M-LOK (style may vary)
• Warranty: Limited Lifetime

Guaranteed Sub-MOA performance with match grade ammo and proper shooting technique

Made in the USA