Designed as a cost-effective upgrade for Ruger American Predator & Ranch rifle models equipped with an AR 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. Constructed of reinforced polymer and an anodized aluminum bedding block with steel recoil lugs, the Hunter American Stock Ruger American Short Action, STANAG Magazine Well requires no gunsmithing and is your true drop-in solution. Tune your rifle to fit your needs with shooter-focused ergonomics that allow LOP adjustments from 13.0 to 15.0 with the included .50 spacers. Optional 0.00", 0.50", and 0.75" Cheek Risers are available to adjust cheek weld (stock comes pre-fitted with 0.25" Riser). The stock also comes M-LOK compatible to accept a broad range of accessories to enhance your shooting experience. Magpul's Bolt Action Magazine Well Hunter American, STANAG (MAG1208) is included for reliable detachable box magazine compatibility.