CMMG Resolute Mk3 Upper Group .308 Win 16.1in

Build a capable .308 Win carbine with the RESOLUTE Mk3 upper group. The design is based on the Gen 1 DPMS High-Pattern LR308 platform to maximize parts compatibility and customization potential. This upper ships complete with a bolt carrier group and ZEROED accessories including a polymer dust cover, ambidextrous charging handle, and a muzzle brake. The finish on this listing is the standard black Cerakote.

Key Specifications

• The platform is Mk3.
• The caliber is .308 WIN.
• The barrel measures 16.1 inches.
• The operating system is Direct Impingement.
• The barrel material is 416SS SBN.
• The barrel twist is 1:10.
• The muzzle device is the CMMG ZEROED Muzzle Brake.
• The muzzle thread is 5/8 x 24.
• The hand guard is the CMMG EML15 M-LOK.
• The upper receiver is Billet 7075 T6 Aluminum.

Designed for builders who value parts availability and modularity, the Resolute Mk3 upper group provides a robust foundation for precision-oriented and practical .308 carbine builds. Its LR308-compatible platform, billet upper construction, and M-LOK handguard make it straightforward to accessorize and adapt for a range of applications where durability and serviceability matter.