Rock River Arms AR-15 A4 Upper Receiver Assembly 9mm Upper 9MM0364B
- UPC:
- 842834103935
- MPN:
- 9MM0364B
- Main Version:
- Rock River Arms AR-15 A4 Upper
- Caliber:
- 9mm
- Manufacturer:
- Rock River Arms
- Version:
- Rock River Arms AR-15 A4 Upper Receiver Assembly
- Features:
- 6" R4 Handguard, A2 Flash Hider
- Type:
- Upper
- Barrel Length:
- 10.5"
