Lower Group, Endeavor 300, Mk4

The 300 Series features the Magpul MOE pistol grip, the CMMG Ripstock with 6-Position Enhanced Receiver Extension, and a Geissele Automatics SSA 2-Stage 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 Products come with CMMG’s Lifetime Quality Guarantee.