Green Mountain 6.8 SPC AR-15 Barrel 16" M4 Phosphate - GM-M39
$182.95
Out of stock
Upgrade your AR-15 build with the Green Mountain 6.8 SPC AR-15 Barrel, a 16-inch M4-profile component engineered for precision and reliability in tactical and sporting applications. This barrel delivers enhanced ballistic performance in the versatile 6.8 SPC cartridge, offering superior terminal ballistics compared to standard 5.56 NATO options while maintaining compatibility with the popular AR-15 platform.
Key Features and Benefits
- Optimized 6.8 SPC Chambering: Provides increased stopping power and effective range for medium-game hunting, tactical scenarios, and long-range plinking, solving the limitations of lighter calibers in demanding environments.
- M4 Barrel Profile with Carbine Gas System: Balances weight and heat dissipation for improved handling and sustained fire, reducing fatigue during extended use and ensuring reliable cycling under various conditions.
- 1:11 Twist Rate: Stabilizes a wide range of 6.8 SPC bullet weights for consistent accuracy and tight groupings, addressing the need for versatile ammunition compatibility without compromising performance.
- Mag Phosphate Finish: Enhances corrosion resistance and durability in harsh conditions, extending barrel life and minimizing maintenance requirements for shooters in the field.
- 0.75-Inch Gas Block Journal and 5/8×32 Muzzle Threads: Facilitates easy installation of standard gas blocks and a variety of muzzle devices or suppressors, offering customization flexibility to meet specific operational needs.
Technical Specifications
- Platform: AR-15
- Barrel Length: 16 inches
- Profile: M4
- Cartridge Compatibility: 6.8 SPC
- Gas System Length: Carbine
- Gas Block Journal: 0.75 inches
- Twist Rate: 1:11
- Muzzle Thread Pattern: 5/8×32
- Finish: Mag Phosphate
- Weight: 30 ounces
Why Choose This Product
Built to exacting standards, this barrel integrates seamlessly into custom AR-15 configurations, providing the reliability and accuracy enthusiasts demand. Its design addresses common pain points such as inconsistent cycling, excessive weight, and limited caliber options, delivering a robust solution for serious shooters. Whether assembling a dedicated 6.8 SPC rifle for competition or defense, this component ensures dependable function and precision shot after shot.
Invest in quality components that enhance your firearm’s capabilities—select the Green Mountain 6.8 SPC AR-15 Barrel for your next build.
| Weight | 30 oz |
|---|---|
| Dimensions | 16 in |
| Finish | Mag Phosphate |
| Barrel Profile | M4 |
| Cartridge Compatibility | 6.8 SPC |
| Gas Block Journal | 0.75 |
| Barrel Length | 16" |
| Gas System Length | Carbine |
| Platform | AR-15 |
| Twist Rate | 1:11 |
| Muzzle Thread Pattern | 5/8×32 |
| MPN | GM-M39 |
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.
