Rock River Arms AR-15 A4 Upper Receiver Assembly 223/5.56 Upper AR0790B
- UPC:
- 842834118144
- MPN:
- AR0790B
- Main Version:
- Rock River Arms AR-15 A4 Upper
- Caliber:
- 223/5.56
- Manufacturer:
- Rock River Arms
- Version:
- Rock River Arms AR-15 A4 Upper Receiver Assembly
- Features:
- Free-Float Handguard; A2 Flash Hider
- Type:
- Upper
- Finish:
- Black
- Barrel Length:
- 20" SS
