5KU MDX Retractable CQB Stock for AR / M4 AEG

A clever design of collapsible M4 stock Whilst the base is attached at the tail end of the receiver, the stock is pulled along two narrow rods. When collapsed for storage or extreme CQB, these rods slide down the side of the receiver. This style of stock is featured on airsoft RIFs such as the VFC MAXIM Defense MD9-K SBR GBBR Made from CNC aluminium.