This is a new Sig 2022 pistol stock kit. Made by FAB Defense, this unit allows for you to make your Sig Sauer 2022 into a short barreled rifle. This kit has a side folding stock, an upper receiver rail, a quad railed forearm, and a folding vertical post. All NFA rules apply on this kit once it is installed. This very cool looking kit can be sent directly to your home.