Sons of Liberty Gun Works M4-89 Complete Upper 223 Remington/556NATO 13.7" Combat Barrel QPQ Finish Black 13" M89 M-LOK

Sons of Liberty Gun Works M4-89 Complete Upper, 223 Remington/556NATO, 13.7" Combat Barrel, QPQ Finish, Black, 13" M89 M-LOK Handguard, P/W NOX Flash Hider M489UPPER-13.7-556
Model: M4
Caliber: 223 Remington
Caliber2: 556NATO
Barrel Length: 13.7"
Finish/Color: QPQ
Type: Upper
Manufacturer: Sons of Liberty Gun Works
Model: M4
Mfg Number: M489UPPER-13.7-556

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