Caliber: 22 LR - Stock: Gray Synthetic - Front Sight: None - Rear Sight: None - Material: Alloy Steel - Thread Pattern: N/A - Twist: 1:16 RH - Capacity: 10 - Finish: Satin Black - Weight: 4.5 lb. - Overall Length: 37 - Barrel Length: 18.50 - Grooves: 6 - 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. - Factory-installed combination scope base adapter for both Weaver-style and .22 tip-off scope mounts. - 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.