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.
AR Upper Parts
RRA CMPLT MID A4 UPR 450BM 16″ 5RD
$751.99
RRA CMPLT MID A4 UPR 450BM 16″ 5RD
Availability: 11 in stock
| UPC | |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | |
| Barrel Length | |
| Caliber/Gauge | |
| Capacity | |
| Color | |
| Model | |
| Product Type |
Reviews
There are no reviews yet.