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Mfg Item #: 55BB40BAB
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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.
| Series | MK4 |
|---|---|
| Caliber | 5.56x45mm NATO |
| Handguards | M-LOK Free-Float |
| Barrel Length | 16.10" |
| Handguard Finish | Armor Black |
| Barrel Length Range | 16" to 16.99" |
