Patented, detachable 10-round rotary magazine features a unique rotor to separate cartridges and provide reliable feeding; Legendary action, a tried and true Ruger design, ensures consistent, reliable performance; 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; Easy-to-use extended magazine release provides smooth, no-fuss removal of flush-mounted magazine; Heat-stabilized, glass-filled, polymer trigger housing assembly is precision made of high-tech material for impact and abrasion-resistance