We sell tactical reload stocks for AR Buffertubes. Our exclusively patented GHOSTSTAR® Stock, also commonly referred to as a "Glock Stock", Stock features: works exclusively with Glock® 9mm, .40S&W, .357sig and .380ACP caliber magazines; near-indestructible, military-grade glass-filled nylon polymer by DuPont; 2-bolt adjustable stock w/locking key; two easy eject buttons for magazine release; and magazine automatically locks in place once inserted. Magazines not included. (less)