ASK AN EXPERTDescription
- 16" 4140 Chrome-moly barrel
- Medium Taper Profile Barrel
- 1:7" Twist Rate
- Threaded 5/8x24
- CMMG A2 Muzzle Device
- Forged 7075-T6 Aluminum Upper Receiver
- Complete Bolt Carrier Group
- RML15 M-LOK Free Float Hand Guard
- Mil-Spec Charging Handle
The CMMG Resolute 100 Mk4 .300 Blackout Upper Receiver Group (30B12AC) comes with everything you need to connect directly to an existing AR-15 lower receiver. This upper is designed to be compatible with Mil-spec pattern AR-15 lower receivers. Whether you like plinking for recreational shooting, need a reliable gun for varmint and pest control the Resolute 100 Mk4 complete upper receiver assembly is the only upper you need.
Warranty Information
| Caliber | 300 Blackout |
| Barrel | 16.1", 1:7 Twist, Medium Taper, 4140CM, SBN |
| Muzzle | A2 Comp, Threaded 5/8-24 |
| Gas Port Location | Carbine |
| Receiver | Forged 7075-T6 AL M4 Type Upper. Complete with BCG |
| Hand Guard | CMMG RML15 M-Lok Hand Guard |
| Finish | Hard Coat Anodized Receiver and Hand Guard (Can be upgraded to Cerakote) |
| Charging Handle | CMMG Mil-Spec |
| Length, in | 25.2" |
| Weight | 4lbs 5oz |
