16" 5.56 Phosphate Carbine M-LOK Heavy Upper Assembly
Heavy-duty strength. American-made precision.
Out of stock
16″ 5.56 Phosphate Carbine M-LOK Heavy Upper Assembly
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.
| Weight | 64 oz |
|---|---|
| Dimensions | 28 × 5 × 5 in |
| 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 |
| UPC | 26862 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.