Sons of Liberty Gun Works Maritime A5 Receiver Extension (Buffer Tube), 10 Position

Sons of Liberty Gun Works Maritime A5 Receiver Extension (Buffer Tube), 10 Position Improved receiver extension with additional stock positions, drainage holes and increased buffer retainer lip. The Sons of Liberty Gun Works A5 Receiver Extension is a 10-position receiver extension tube designed to work with the VLTOR A5 or BCM MK2 buffer system. This receiver extension is slightly longer than the traditional M4 receiver extension and is designed to work with Mil-Spec dimensioned M4/AR-15 type collapsible stocks. This receiver extension tube can also can be utilized as a replacement receiver extension for the AR-10 rifle. Click here to browse our entire selection of Buffers & Buffer Springs.