Sons of Liberty Gun Works M4-L89 5.56 NATO Barreled Upper Receiver - 13.7" - No Muzzle Device

Sons of Liberty Gun Works M4-L89 5.56x45mm 11.50"

Sons of Liberty Gun Works L89 Combat V2 AR-15 13.7" Pinned CMV 5.56 NATO Assembled Upper Receiver w/ NOX-9 Flash Hider

Sons of Liberty Gun Works M4-L89 5.56x45mm 13.70"

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 AR-15 L89 Pinned and Welded Upper Receiver Assembly 5.56x45mm 14.5" Barrel 13.75" L89 M-LOK Rail with HUXWRX Flash Hider

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