Patriot Ordnance Factory Minuteman Complete Upper 350 Legend 16.50" Black Nitride Barrel Aluminum Black Anodized Receiver 14.50" M-LOK Handguard Lo Pro DI Gas Block (Mid Length)

The Patriot Ordnance Factory Minuteman Complete Upper in 350 Legend with 16.50" black nitride barrel is purpose-built for shooters seeking a compact, subsonic-ready rifle platform without the serialization requirements of a complete firearm. This upper receiver assembly fills a critical gap in the market for those who need a genuine 350 Legend upper for sale—whether for hunting, precision shooting, or law enforcement training—without committing to a full lower receiver purchase. The Minuteman line represents POF's commitment to modular platform flexibility, allowing end-users to build or upgrade at their own pace while maintaining professional-grade components throughout.

Built on a 6061-T6 aluminum receiver with mil-spec black anodized finish, this upper delivers durability and corrosion resistance in high-round-count environments. The 16.50" black nitride barrel extension provides excellent bore protection and wear resistance—critical for subsonic 350 Legend performance where consistent velocity and minimal fouling are essential for suppressed fire. The 14.50" M-LOK handguard offers modern accessory mounting without the weight penalty of traditional rail systems, while the mid-length direct impingement gas block maintains reliable cycling across the 350 Legend's velocity envelope. At 4.78 pounds, the upper strikes an optimal balance between shootability and maneuverability, making it ideal for both bench work and tactical applications where weight discipline matters.

This complete upper pairs seamlessly with any mil-spec 5.56 NATO/.223 Remington lower receiver, making integration straightforward for builders or those upgrading existing platforms. The 350 Legend chambering delivers superior energy retention at distance compared to 300 Blackout while maintaining subsonic capability, making this upper specification ideal for hunters, tactical trainers, and shooters in jurisdictions with specific cartridge restrictions. The specifications—geometry, gas port sizing, and handguard mounting—ensure reliable function with both factory and hand-loaded ammunition, though suppressed operation is where this platform truly excels due to the round's inherent subsonic nature.