The Hephaestus Picatinny rail stock adapter is designed for the Tokyo Marui SAIGA-12K GBBR with side folding stock receiver. This is an easy-to-install accessory designed to allow the shooter to use Picatinny rail mountable stocks or sling mounts for alternative usage. You can either opt for a more modern stock or do away with the stock altogether, making your AK more compact!