SKU: 156348
UPC: 810103473393
MPN: 30BC40AAB
The CMMG 30BC40AAB Resolute MK4 300 Blackout 16.10", Armor Black, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle) offers a professional-grade upper assembly designed for shooters who demand ballistic efficiency and modularity. In tactical environments, the 16.10-inch barrel provides the optimal length to maximize the powder burn of the .300 Blackout cartridge, ensuring consistent velocities while maintaining a non-NFA status for standard rifle configurations. This makes it an ideal choice for those transitioning between duty roles and civilian defensive applications where reliability is non-negotiable.
Built on the proven MK4 platform, this assembly features a rugged Armor Black finish that provides a high level of corrosion resistance and a low-signature profile. The M-LOK free-float handguard is a critical component for the modern operator, offering a continuous top rail for optics and ample attachment points for lights, lasers, and vertical grips without sacrificing barrel harmonics. For those looking to buy a specialized upper for suppressed fire or specialized hunting loads, the Resolute series provides the structural integrity required for sustained high-performance use.
This specific model is shipped without a Bolt Carrier Group (BCG) or charging handle, providing an excellent foundation for custom builds. Experienced armorers understand that selecting a specific BCG allows for fine-tuning the gas system, especially when running subsonic ammunition or high-back-pressure suppressors. By integrating your preferred components into this CMMG Resolute MK4 specifications package, you gain ultimate control over the cycling and ergonomics of your AR-platform rifle.
Whether you are analyzing a review for your next build or looking for a durable for sale option to upgrade an existing lower, this CMMG assembly stands as a testament to American manufacturing. The free-float design ensures that your zero remains true even when using a bipod or shooting from a barricade, a feature essential for precision in dynamic environments. This upper is engineered to meet the rigorous demands of the field, providing a versatile solution for any mission profile.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
