Description
CMMG Resolute MK4 assembled upper receiver is built for .223 REM/5.56 NATO and comes with a 16.1 in matte black barrel. The setup includes an M-LOK free-float handguard and is intended as a complete upper receiver assembly. This upper receiver does not include a BCG or a charging handle.
- Caliber: .223 REM/5.56 NATO
- 16.1 in barrel length
- Matte black barrel finish
- 1-7 rate of twist
- M-LOK free-float handguard
| Specs | Details |
|---|---|
| Style | Assembled |
| Action | .223 REM/5.56 NATO |
| Barrel Finish | Matte Black |
| Rate of Twist | 1-7 |
