- 4150 Chrome Moly Vanadium
- 1/7 Twist
- QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension
- Pistol Gas System with Low Pro Gas Block
- A2 Flash Hider
- 5/8x24 Threaded Muzzle
- M16 BCG HP/MPI Tested with Viton O-ring
- 12 Quad Rail
- Dry Film Lubed 7075 - T6 Forged Upper w/ T-Markings
- Standard Charging Handle
- Forward Assist & Ejection Port Assembly
We have this upper on a 300BLK we built and will say this is a fantastic upper! If your looking for a 16" 300 BLK upper this is it!
Fantastic upper! Well built We put together a 300 BLK with this upper and its just shoots perfect! You guys really put out nice stuff!