Molded, one-piece chassis and adjustable buttstock assembly are manufactured with glass-filled nylon for strength, stiffness and stability, making a solid foundation for accuracy each and every shot. Adjustable buttstock features a flat Picatinny bag rider making it easy to affix a rear monopod. A molded-in window provides a tether point for your squeeze bag, and a metal QD pocket makes it easy to secure a sling. Quick-Fit adjustable Precision Rimfire stock allows length of pull and comb height to be quickly and easily adjusted to get proper fit over a wide range of shooter sizes, outerwear and shooting positions. Indicating marks molded into the chassis help you quickly return to a previous position. Big-Gun bolt throw adjustment enables shooters to change from a rimfire 1-1/2" bolt throw to a short-action centerfire 3" bolt throw, reducing the chance of short-stroking your bolt in competition. Ruger Marksman Adjustable™ trigger is externally adjustable, with a trigger pull range of 2.25 to 5 pounds; wrench is stored in a buttstock compartment. 1/2"-28 threaded barrel for standard muzzle accessories, like the Silent-SR® suppressor, comes with a factory-installed thread protector covering both the threads and crown. Accepts all 10/22 magazines. Also includes: two, 10-round BX-1 magazines.