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Rock River Arms A4 Coyote Carbine upper comes chambered in .300 AAC / Blackout with a 16″ chrome moly 1/8twist barrel. Additionally this upper includes a RRA 12.5″ M-Lok compatible lightweight free float rail and a Smith Vortex flash hider (5/8-24 thread). This is a complete upper with bolt carrier group and charging handle assembly..
| UPC | 842834108756 |
|---|---|
| Manufacturer | Rock River Arms |
| Manufacturer Part Number | BLK0592 |
| Barrel Finish | Black |
| Barrel Length | 16" |
| Caliber/Gauge | .300 AAC Blackout |
| Model | Coyote Carbine |
| Product Type | Upper |
| Rate of Twist | 1:8" |
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