14.5" 5.56 Phosphate + Chrome Lined Carbine M-LOK M4 Upper Assembly - 26973
Out of stock
14.5″ 5.56 Phosphate + Chrome Lined Carbine M-LOK M4 Upper Assembly
Compact. Chrome-lined. Built to perform.
The 14.5″ 5.56 Phosphate + Chrome Lined Carbine M-LOK M4 Upper Assembly is a rugged, no-compromise upper built for reliable performance in demanding conditions. Centered around a top-tier mil-spec forged upper receiver, this assembly features a 14.5″ M4-profile barrel with a mag phosphate exterior and chrome-lined bore for maximum corrosion resistance and barrel life.
The carbine-length gas system and low-profile steel gas block ensure consistent cycling and durability. The upper is finished with quality American-made M-LOK handguards (style may vary), a nitrided A2 flash hider, and precision assembly practices using Permatex 242 threadlocker and AEROSHELL 33MS anti-seize grease on critical components.
Whether you’re building a lightweight defensive carbine or a pinned-and-welded compliant rifle, this USA-made upper delivers performance and reliability without cutting corners. BCG and charging handle not included.
Specifications
- Barrel Finish: Mag Phosphate
- Barrel Profile: M4
- Cartridge Compatibility: 5.56 NATO
- Barrel Length: 14.5″
- 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
- Origin: Made in the USA
Engineered for serious shooters, this upper assembly is a solid foundation for any compact AR-15 build.
| Weight | 64 oz |
|---|---|
| Dimensions | 28 × 5 × 5 in |
| Barrel Finish | Mag Phosphate |
| Barrel Profile | M4 |
| Cartridge Compatibility | 5.56 NATO |
| Barrel Length | 14.5 |
| Gas System Length | Carbine |
| Twist Rate | 1:9 |
| BCG / Charging Handle | Not Included |
| MPN | 26973 |
| UPC | 26973 |
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.
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