Sons of Liberty Gun Works M4-L89 Upper Receiver Group is a upper-receiver component featuring a 16" barrel and 5.56 NATO caliber/gauge.
Features
- Barrel Length: 16"
- Caliber / Gauge: 5.56 NATO
- Upper Receiver
- 5.56 NATO
- 16 Barrel
- Fits AR-15
- Matte Finish
- Black
