Lower Group, Resolute 100, Mk4

The 100 Series features the beloved A2 pistol grip, a CMMG M4 with 6-position receiver extension buttstock, and a CMMG single-stage mil-spec style trigger.

The Mk4 platform accepts standard AR15-style magazines, and is the most versatile of the CMMG platforms, especially with the .22 LR, 5.7x28mm (Conversion), and 9mm conversions.

All of our Upper Groups come complete with BCG.
All Products come with CMMG’s Lifetime Quality Guarantee.