Green Mountain 350 Legend AR-15 Barrel 18" Govt. Nitride - GM-M66
$210.95
Only 1 left in stock
Engineered for precision and reliability, the Green Mountain 350 Legend AR-15 Barrel delivers exceptional performance in a versatile 18-inch package. Designed specifically for the popular 350 Legend cartridge, this barrel combines a durable nitride finish with a proven government profile to meet the demands of hunters, sport shooters, and tactical enthusiasts alike.
Key Features
- Nitride/Melonite Finish: Provides superior corrosion resistance and reduced friction for smoother operation and easier maintenance in all conditions.
- Government/SOCOM Profile: Offers an optimal balance of strength and weight distribution, enhancing accuracy and heat dissipation during extended sessions.
- Rifle-Length Gas System: Ensures reliable cycling and smooth function with standard AR-15 components.
- 1:16 Twist Rate: Stabilizes a wide range of 350 Legend projectiles for consistent accuracy and effective terminal performance.
- 1/2×28 Muzzle Threads: Compatible with most standard muzzle devices, brakes, and suppressors.
- 0.750″ Gas Block Journal: Fits common low-profile gas blocks for clean, customizable builds.
Specifications
- Barrel Length: 18 inches
- Cartridge Compatibility: 350 Legend
- Platform: AR-15
- Finish: Nitride/Melonite
- Barrel Profile: Government/SOCOM
- Gas System: Rifle length
- Twist Rate: 1:16
- Muzzle Thread: 1/2×28
- Gas Block Journal: 0.750 inches
- Weight: 32 ounces
Why Choose This Barrel
This Green Mountain barrel addresses common pain points for AR-15 builders by delivering factory-level quality in a drop-in upgrade. The nitride treatment withstands harsh environments while maintaining bore integrity, reducing the need for frequent cleaning. Its government contour provides the rigidity needed for consistent shot placement without excessive bulk, making it ideal for both field use and range work. Built to exacting standards, it integrates seamlessly with standard AR-15 uppers and lowers for straightforward assembly.
Whether you’re converting an existing platform for deer hunting or assembling a dedicated 350 Legend rifle, this barrel offers the accuracy, durability, and compatibility serious shooters expect.
Upgrade your build today with this precision-crafted component and experience the difference in every shot.
| Weight | 32 oz |
|---|---|
| Dimensions | 18 in |
| Finish | Nitride / Melonite |
| Barrel Profile | Government / SOCOM |
| Cartridge Compatibility | 350 Legend |
| Gas Block Journal | 0.75 |
| Barrel Length | 18 |
| Gas System Length | Rifle |
| Platform | AR-15 |
| Twist Rate | 16 |
| Muzzle Thread Pattern | 1/2×28 |
| MPN | GM-M66 |
| UPC | 33788 |
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.
