SKU: CMMG30DF80ABLEM
MPN: 30DF80A
The CMMG Bbl 300blk 16.1" Mr 4140cm Blem is a precision rifle barrel designed for shooters who demand reliability in intermediate-distance engagements. Chambered in .300 Blackout, this 16.1-inch barrel is ideal for subsonic performance and ballistic efficiency, making it suitable for tactical teams and military personnel engaged in suppressed fire operations.
Constructed from premium 4140 chromoly steel, the barrel features a rigorous salt bath nitride finish that resists corrosion, extends bore life, and maintains dimensional stability under sustained fire. The 1:7 twist rate is standard for .300 Blackout ammunition, providing consistent accuracy across various loadings, from heavy subsonic rounds to lighter supersonic loads. The 5/8"-24 TPI threaded muzzle accommodates industry-standard suppressors and muzzle devices, enhancing sound-signature management.
This barrel excels in AR-15 platform builds, making it well-suited for close-quarters combat, urban operations, and suppressed hunting applications. Installation is straightforward using standard AR-15 barrel extension tooling and a properly torqued barrel nut, ensuring a reliable fit for your firearm.
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.
