Ruger Modular Stock System includes a low comb, compact length of pull module; This legendary action is a tried and true Ruger design that ensures consistent, reliable performance; Detachable 10-round rotary magazine features a unique rotor to separate cartridges and provide reliable feeding; Easy-to-use, prominent magazine release provides smooth, no-fuss removal of flush-mounted magazine; Cold hammer-forged barrel is locked into the receiver by a unique, two-screw, V-block system; Positive, push-button, cross-bolt manual safety; Combination scope base adapter for both Weaver-style and .22 tip-off scope mounts included; Heat-stabilized, glass-filled, polymer trigger housing assembly is precision made of high-tech material for improved manufacturing tolerances, impact and abrasion-resistance and an unmatched ability to withstand the elements; The receiver and stock combine to create classic lines for attractive styling; Fiber optic front with adjustable fiber optic rear sights