16" 5.56 Phosphate Carbine M-LOK Heavy Upper Assembly

16" 5.56 Phosphate Carbine M-LOK Heavy Upper Assembly

Heavy-duty strength. American-made precision.

The 16" 5.56 Phosphate Carbine M-LOK Heavy Upper Assembly is built for shooters who prioritize strength, reliability, and long-term performance. Anchored by a mil-spec forged upper receiver, this upper features a 16" heavy-profile barrel with a mag phosphate finish, delivering excellent heat resistance and consistent accuracy over extended firing sessions.

The carbine-length gas system, combined with a low-profile steel gas block, ensures smooth and reliable cycling. This upper is finished with quality American-made M-LOK handguards (style may vary), giving you the modular flexibility to attach mission-critical accessories. A nitrided A2 flash hider and meticulous assembly process—including Permatex 242 on key fasteners and AEROSHELL 33MS anti-seize grease—ensure every component stays torqued and secure under pressure.

While BCG and charging handle are not included, this upper is ready to pair with your favorite components. Backed by a Limited Lifetime Warranty and a Sub-MOA Guarantee with proper ammo and shooting technique.

Specifications

• Barrel Finish: Mag Phosphate
• Barrel Profile: Heavy
• Cartridge Compatibility: 5.56 NATO
• Barrel Length: 16"
• Gas System Length: Carbine
• Twist Rate: 1:9
• BCG / Charging Handle: Not Included
• Handguard: American-Made M-LOK (style may vary)
• Muzzle Device: Nitrided A2 Flash Hider
• Warranty: Limited Lifetime
• Guarantee: Sub-MOA accuracy with match-grade ammo
• Origin: Made in the USA

Whether you’re upgrading your current setup or building from scratch, this upper brings uncompromising quality and dependability to your AR platform.