Sons Of Liberty Gun Works M4-89 Complete Upper 300 Blackout 16" Combat Barrel 1:7" Twist Qpq Finish 15" M89 M-lok

Sons of Liberty Gun Works M4-89 Complete Upper, 300 Blackout, 16" Combat Barrel, 1:7" Twist, QPQ Finish, Black, 15" M89 M-LOK Handguard, A2 Flash Hider M489UPPER-16-300
Model: M4
Caliber: 300 Blackout
Barrel Type: 1:7
Barrel Length: 16"
Finish/Color: QPQ
Type: Upper
Manufacturer: Sons of Liberty Gun Works
Model: M4
Mfg Number: M489UPPER-16-300