CMMG Resolute Mk4 Rifle | 300 BLK | 14.5″ 30rd

The CMMG Resolute Mk4 is chambered in 300 BLK and shipped with a 14.5″ barrel that is pinned and welded to meet rifle-length configuration, resulting in a 16.1″ overall barrel length. This compact carbine-length AR is intended to deliver the ballistics of 300 BLK while maintaining a shorter, more maneuverable profile. It is fitted with CMMG’s EML 15 handguard, ZEROED SVD brake, and the RIPSTOCK to provide a complete out-of-the-box package.

Suggested optic: a Vortex Strike Eagle 1-6×24 is a practical optic under $1000 that suits the cartridge and this rifle’s intended envelope for both close to mid-range work.

Product Specifications

• The firearm is chambered in 300 BLK.
• The barrel measures 14.5 inches and is pinned and welded to achieve a compliant rifle configuration with an overall barrel length of 16.1 inches.
• The muzzle is threaded 5/8×24.
• Includes a factory-supplied 30-round magazine.
• The finish is Midnight Bronze.
• The rifle ships with a ZEROED SVD Brake installed and pinned/welded to the barrel.
• Equipped with the CMMG EML 15 handguard featuring M-LOK attachment slots.
• M-LOK slots are located at the 3, 6, 9, and 12 o’clock positions on the handguard.
• The rifle is fitted with CMMG’s proprietary RIPSTOCK.
• The product is sold and configured as a rifle due to the pinned and welded muzzle device and resulting length.
• Category: AR Rifles.
• UPC is 810103479784.

The Resolute Mk4 presents a concise, purpose-built AR platform for shooters seeking the ballistic flexibility of 300 BLK in a shorter rifle package. Its pinned-and-welded configuration keeps the system classified as a rifle while offering a compact overall length, and the included components provide a usable baseline for a variety of field roles. The combination of the EML 15 handguard and M-LOK compatibility makes accessory mounting straightforward and lightweight.