The new Kinetic Stribog Stock kit takes the amazing Magpul designed Masada (ACR-E) stock system and outfits it with the KDG Stribog adaptor to allow for direct use with your Stribog firearm. The kit ships fully assembled with adapter already on the stock for drop in use. Features: Side Folding with Spring lock tension 7 telescoping adjustable positions Adjustable Cheek Riser, QD Cup (Can be used on either side of the stock) Watertight CR123 battery compartment Note: KDG does not warranty wear on your firearm from wear/tear and use whether it be from factory parts or aftermarket parts from KDG or other manufacturers. Mfg: Kinetic Development Group