Dirty Bird Bakersfield
Out of stock
Description
Discover the precision and reliability of the Green Mountain 5.56 AR-15 Barrel 20″ M16 A1 Phosphate, a faithful reproduction of the classic military M16A1 profile designed for serious shooters and builders seeking authentic performance.
Key Features
- Authentic M16 A1 Pencil Profile: Government/SOCOM contour delivers classic handling and balance while maintaining durability for extended use.
- Chrome-Lined Bore and Chamber: Enhances corrosion resistance and extends barrel life, ensuring consistent accuracy even after thousands of rounds.
- Phosphate Finish: Provides a rugged, non-reflective surface that protects against wear and environmental factors.
- Rifle-Length Gas System: Optimized for smooth cycling and reduced recoil in 5.56 NATO platforms.
- 1:12 Twist Rate: Ideal for stabilizing 55-grain projectiles, delivering excellent accuracy with standard military and varmint loads.
Technical Specifications
- Caliber: 5.56 NATO / .223 Remington
- Barrel Length: 20 inches
- Twist Rate: 1:12
- Gas System: Rifle length with 0.625″ journal
- Muzzle Threading: 1/2×28 for compatibility with standard muzzle devices
- Material: 41V50 chrome-moly vanadium steel
- Finish: Phosphate with chrome-lined bore and chamber
- Weight: 34.8 oz
- Platform: AR-15 / M16 compatible
Benefits for AR-15 Builders and Enthusiasts
This barrel addresses common pain points like premature wear and inconsistent performance by combining mil-spec construction with modern manufacturing tolerances. Whether restoring a vintage-style build or upgrading an existing AR-15, it provides reliable function and pinpoint accuracy without excess weight. The pencil profile reduces overall rifle heft for improved maneuverability, while the chrome lining minimizes fouling and simplifies cleaning.
Why Choose This Barrel
Engineered as an exact replica of the original M16A1, it offers proven battlefield heritage in a civilian-legal format. Builders appreciate the pre-installed M16 extension and compatibility with low-profile gas blocks or traditional front sights. Its specifications make it a top choice for precision shooting, training, or collecting.
Upgrade your AR-15 with this high-quality component and experience the difference in build quality and shooting performance.
Additional information
| Weight | 34.8 oz |
|---|---|
| Dimensions | 20 in |
| Finish | Phosphate + Chrome Lined |
| Barrel Profile | Government / SOCOM |
| Cartridge Compatibility | 5.56 NATO |
| Gas Block Journal | 0.625 |
| Barrel Length | 20 |
| Gas System Length | Rifle |
| Platform | AR-15 |
| Twist Rate | 1:12 |
| Muzzle Thread Pattern | 1/2×28 |
| MPN | GM-M14 |
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.
