Magpul Hunter American Ruger American Rifle Stock - Gray - Designed as a cost-effective upgrade for Ruger American Predator and Ranch rifle models equipped with an AR15 STANAG magazine compatible stock, the Hunter American Stock - Ruger American Short Action, STANAG Magazine Well features a fully adjustable length of pull, comb height, enhanced ergonomics, and reinforced construction. Reinforced polymer construction with Type III hard anodized, machine finished cast aluminum bedding block Fully adjustable length of pull with included Spacers M-LOK slots on forend sides and bottom for a wide variety of accessory and sling mounting options Push-button QD swivel compatibility in rear with optional Sling Mount Kits