The new Kinetic SAS kit takes the amazing Magpul designed Masada (ACR-E) stock system and allow for direct use with your SCAR platform rifle. Stock ships fully assembled with SCAR adapter for drop in use. Side Folding with Spring lock tension 7 telescoping adjustable positions Adjustable Cheek Riser 6061-T6 aluminum adapter bracket for added stock support and regidity QD Cup (Can be used on either side of the stock) Watertight CR123 battery compartment Approx. 1/4 lb less in overall weight than the factory SCAR stock assembly buttpad Black or Magpul Brown color Weight: Approx. 15.2 oz Mfg: Kinetic Development Group