Top off your next build with this RESOLUTE Mk4 Upper Group. Chambered, this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice.
CMMG 55BB40BMB Resolute MK4 5.56x45mm NATO 16.10″, Midnight Bronze, M-LOK
CMMG 55BB40BMB Resolute MK4 5.56x45mm NATO 16.10″, Midnight Bronze, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)
| UPC | 810103473508 |
|---|---|
| Manufacturer | CMMG |
| Manufacturer Part Number | 55BB40BMB |
| Barrel Length | 16.10" |
| Caliber/Gauge | .223 REM/5.56 NATO |
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