| Platform | Mk4 |
| Lower Receiver | Mk4 Forged 7075 T6 Aluminum |
| Finish | Cerakote Standard |
| Pistol Grip | CMMG ZEROED Pistol Grip |
| Buffer Type | Rifle |
| Receiver Extension | CMMG A1 Extension |
| Stock / Brace | Magpul MOE |
| Trigger Type | Mil-Spec Single Stage |
| Trigger Guard | CMMG ZEROED Trigger Guard |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Weight | 2.6 lbs |
| Length | 18.3" |
Please Allow 15-30 Days To Process Your Order.
State/local restrictions may apply in CA, CO, CT, DE, DC, HI, IL, MD, MA, MI, NJ, NY, or WA. Customers must review our Firearms Shipping Policy prior to ordering.
Firearms with attached pistol brace. Please confirm your FFL is accepting transfers for pistol brace equipped firearms prior to ordering.
LOWER GROUP, ENDEAVOR, Mk4, Mil-Spec Trigger
While the ENDEAVOR® Mk4 – AR15 lower receiver might meet mil-spec, every other part on this lower group goes beyond to meet CMMG® specs. Available in your choice of seven different Cerakote finishes, this ENDEAVOR lower group comes with the Magpul® MOE® Rifle Stock and the full suite of CMMG ZEROED™ parts including:
ZEROED Extended Mag Release Button
We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.