16″ 5.56 Phosphate Carbine M-LOK Heavy Upper Assembly - 26862

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 high-quality, American-made M-LOK handguards (style may vary), providing you with 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 the 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.