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 55BB40BAB Resolute MK4 5.56x45mm NATO 16.10″, Armor Black, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)
CMMG 55BB40BAB Resolute MK4 5.56x45mm NATO 16.10″, Armor Black, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)
Original price was: $609.95.$552.99Current price is: $552.99.
| UPC | 810103473461 |
|---|---|
| Manufacturer | CMMG |
| Manufacturer Part Number | 55BB40B-AB |
| Action | .223 REM/5.56 NATO |
| Barrel Finish | Matte Black |
| Barrel Length | 16.1" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Length | 31.2000 |
| Rate of Twist | 1:7" |
| Style | Assembled |
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