Green Mountain 5.56 AR-15 Barrel 16" M4 Finned Nitride - GM-M11
$207.95
Out of stock
Upgrade your AR-15 build with the precision-engineered Green Mountain 5.56 AR-15 Barrel 16″ M4 Finned Nitride. Designed for serious shooters who demand reliability and performance, this carbine-length barrel delivers exceptional accuracy and durability in a lightweight, heat-dissipating package.
Key Features and Benefits
- Finned M4 Profile: The distinctive ribbed design increases surface area for superior heat dissipation during rapid fire, helping maintain barrel integrity and accuracy over extended shooting sessions.
- Nitride Finish: Melonite/nitride treatment provides exceptional corrosion resistance and a smooth, low-friction bore that enhances longevity and reduces fouling compared to traditional finishes.
- 1:7 Twist Rate: Optimized for stabilizing a wide range of 5.56 NATO and .223 Remington projectiles, including heavier match-grade ammunition, ensuring consistent performance across various loads.
- Carbine Gas System: Paired with the 16-inch length for reliable cycling in standard AR-15 configurations, offering a balance of maneuverability and velocity.
Technical Specifications
- Barrel Length: 16 inches
- Cartridge Compatibility: 5.56 NATO / .223 Remington
- Twist Rate: 1:7
- Muzzle Thread Pattern: 1/2×28
- Gas Block Journal: 0.75 inches
- Gas System Length: Carbine
- Platform: AR-15 / M4
- Finish: Nitride / Melonite
- Weight: 34.4 ounces
Why Choose This Barrel?
Whether you’re building a tactical rifle, home defense platform, or competition setup, this Green Mountain barrel addresses common pain points like overheating during sustained fire and premature wear. The finned profile and advanced nitride treatment ensure your firearm stays cool and reliable when it matters most. Manufactured to tight tolerances, it provides the accuracy and dependability serious enthusiasts expect.
Installation and Compatibility
This barrel is compatible with standard AR-15 upper receivers featuring M4 feed ramps. Professional gunsmith installation is recommended for optimal performance and safety.
| Weight | 34.4 oz |
|---|---|
| Dimensions | 16 in |
| Finish | Nitride / Melonite |
| Barrel Profile | M4 |
| Cartridge Compatibility | 5.56 NATO |
| Gas Block Journal | 0.75 |
| Barrel Length | 16" |
| Gas System Length | Carbine |
| Platform | AR-15 |
| Twist Rate | 1:7 |
| Muzzle Thread Pattern | 1/2×28 |
| MPN | GM-M11 |
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.
