Sons Of Liberty Gun Works M4-L89 Upper Receiver Group

SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas P/W Plan B FH

SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas P/W ASR FH

Sons of Liberty Gun Works M4-L89 5.56mm 16" Bbl Mid Gas L89 Rail A2FH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-16-A2

Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail No Muzzle Device Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-145-NMD

Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail P&W HUXWRX Mount Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-145-HUX

Sons of Liberty Gun Works M4-L89 5.56mm 12.5" Bbl Car Gas L89 Rail A2FH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-125-A2

Sons of Liberty Gun Works M4-L89 5.56mm 11.5" Bbl Car Gas L89 Rail A2FH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-115-A2

Sons of Liberty Gun Works L89 Complete Upper Half 14.5in 5.56 Cold Hammer Forged Barrel 13.75in L89 Rail P/W HUX Flash Hider No BCG or CH Black