Rock River Arms A4 mid-length upper comes chambered in .450 Bushmaster with a 16″ chrome moly 1/24 twist barrel. Additionally this upper includes a RRA 13″ M-Lok compatible lightweight free float rail and a RRA Operator Brake (5/8-32 thread). This is a complete upper with bolt carrier group, charging handle assembly and a 5 round magazine.
RRA CMPLT MID A4 UPR 450BM 16″ 5RD
RRA CMPLT MID A4 UPR 450BM 16″ 5RD
$648.33
| UPC | 842834125548 |
|---|---|
| Manufacturer | Rock River Arms |
| Manufacturer Part Number | 450B0592 |
| Barrel Length | 16" |
| Caliber/Gauge | |
| Product Type | Upper |
| Capacity | 5 |
| Model | Tactical Carbine |
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