Designed in 1964. The Ruger® 10/22® is one of the most popular, and widely used rimfire rifles in the US. The 10/22 Carbine line comes in various colors, finishes and accessories. Detachable 10-round rotary magazine features a unique rotor to separate cartridges and provide reliable feeding. Cold hammer-forged barrel is locked into the receiver by a unique, two-screw, V-block system. Combination scope base adapter for both Weaver-style and .22 tip-off scope mounts included.