Product Description
This receiver extension is designed to work with Mil-Spec dimensioned M4/AR-15 type collapsible stocks. It also can be utilized as a replacement receiver extension for the AR-10 rifle.Features :Six position receiver extension made from impact extruded 7075 T6 aluminumHard coat anodizedPositions are numbered and are visible through the witness hole on most stocksSnag-free sliding of the buttstock