Build the ultimate .308 Win carbine with the RESOLUTE® Mk3 upper group. Combining heavy hitting performance with styling in a league of its own, there is no doubt that this upper will set your rifle apart from the crowd. There can be a lot of confusion with .308 AR platforms and compatibility, CMMG has kept it simple by basing our Mk3 platform off the popular Gen 1 DPMS High-Pattern LR308 design, which means greater parts availability and more customization potential. Available in seven different Cerakote finishes, all CMMG® Upper Groups come complete with bolt carrier group and ZEROED ambi charging handle.
| Platform | Mk3 |
| Caliber | .308 WIN |
| Operating System | Direct Impingement |
| Barrel Length | 16.1 |
| Barrel Twist | 1:10 |
| Barrel Contour | MT |
| Barrel Material | 416SS, SBN |
| Muzzle Device | CMMG ZEROED Muzzle Brake |
| Muzzle Thread | 5/8 x 24 |
| Gas Port Location | Rifle |
| Gas Block | Adjustable .750" |
| Upper Receiver | Billet 7075 T6 Aluminum |
| Hand Guard | CMMG EML15 M-LOK |
| Finish | Cerakote Standard |
| Charging Handle | CMMG ZEROED Ambi |
| Weight | 5.8 lbs |
| Length | 28.3" |
