This Volthane Target grip from Volquartsen features a thumbrest, heelrest and finger grooves which allows for complete control for one or two-handed shooting. Comfortable, durable urethane construction provides ergonomic support and reduces felt recoil. The MK IV Volthane Grips come standard with an Extended Magazine Release Button that is designed to be installed from the inside of the grip panel and is then held in place once the grip is tightened to the frame. Please note that this Custom Grip fits the Ruger Mark IV only. Includes Mounting hardware.FeaturesAlso includes Volquartsen Extended Bolt Release and mounting screwsAvailable right-handed onlyNot compatible with 22/45-style framesOnly compatible with standard size magazine releases