CMMG Barrel, 300 AAC Blackout, 16.1″ Barrel, MT 4140CM Sbn

Product Description

The CMMG 300 Blackout 16.1″ barrel is engineered for serious AR-15 carbine builds. This premium barrel features a 1:7 twist rate that stabilizes bullets from 110 to 220 grains effectively. Therefore, you get consistent accuracy across most common 300 Blackout hunting and target loads.

Constructed from durable 4140 chromoly steel, this CMMG barrel resists wear and maintains precision through thousands of rounds. Additionally, the salt bath nitride finish provides superior corrosion resistance and requires minimal maintenance. Moreover, the finish ensures smooth operation and long-term reliability in any shooting environment.

Ideal for Hunters and Tactical Shooters

The 16.1-inch length balances velocity with maneuverability in practical scenarios. This barrel excels in subsonic applications and short-range engagements where the 300 Blackout cartridge performs best. Furthermore, the compact size makes it perfect for recreational shooting, hunting, and tactical training courses.

The 5/8X24 threaded muzzle accepts standard suppressors and muzzle devices compatible with most aftermarket options. Additionally, this threading standard is available on nearly all commercial 300 Blackout suppressors on the market. Therefore, you can easily customize your platform to fit your specific needs and preferences.

Precision Manufacturing and Quality Control

CMMG is known for precision manufacturing and strict quality standards. This barrel meets exacting specifications for concentricity and headspace accuracy. As a result, you get reliable performance and consistent shot-to-shot groupings.

Available at Western Sport – Roanoke, TX

Western Sport is a licensed FFL/SOT dealer serving the North Texas and DFW area since 2007. We stock quality CMMG barrels and components for your build projects. Call us at 817-393-4000 for local expertise and personalized service.

Why Buy from Western Sport?

• Licensed FFL/SOT dealer with 17+ years of expertise in firearms and components.
• Knowledgeable staff answers technical questions about barrel compatibility and installation.
• Competitive pricing on premium CMMG barrels you can trust.
• Fast shipping and careful handling ensure your barrel arrives in perfect condition.
• Local North Texas service with reliable after-sale support and customer relationships.

Frequently Asked Questions

Q: Is this CMMG barrel compatible with standard AR-15 receivers?

A: Yes, this barrel uses standard AR-15 barrel extensions and threads. It installs on any 300 Blackout receiver with matching specifications and proper headspace.

Q: What twist rate does this barrel have and why does it matter?

A: The 1:7 twist rate stabilizes bullets from approximately 110 to 220 grains. This covers most common 300 Blackout loads for hunting and target shooting applications.

Q: Will commercial suppressors work with the 5/8X24 threading?

A: Most commercial 300 Blackout suppressors feature 5/8X24 threading and will fit perfectly. Always verify your specific suppressor’s thread specifications before purchase for compatibility.

Q: What warranty does CMMG provide on this barrel?

A: CMMG includes a manufacturer’s warranty against defects in materials and workmanship. Contact Western Sport at 817-393-4000 or CMMG directly for warranty details and claims procedures.

Additional information