Sons of Liberty M489UPPER13.7556 M4-89 Upper 556 13.7

Sons of Liberty Gun Works L89 Broadsword V2 AR-15 13.7" Pinned CMV 5.56 NATO Assembled Upper Receiver w/ HUX Flash Hider

Sons of Liberty Gun Works M4-L89 14.50" Upper 5.56x45mm, Black

Sons of Liberty Gun Works M4-L89 14.50" Upper 5.56x45mm, Black

Sons of Liberty Gun Works .223 Remington Upper with 13.7" Barrel, Black - M489UPPER13.7556

Sons of Liberty Gun Works Half Complete Upper Receiver M4-89 5.56mm 11.5in 10.5in Combat Barrel M89 Rail A2 Flash Hider No BCG or CH Black

Sons of Liberty Gun Works AR-15 L89 Broadsword Upper Receiver Assembly 5.56x45mm 11.5" Cold Hammer Forged Barrel 10.75" L89 M-LOK Rail

Sons of Liberty Gun Works .223 Remington Upper with 13.7" Barrel, Black - PATROLSLUPPER13.7556