Volthane Grips for the Ruger Mark IV™ are made from a proprietary material designed to withstand the elements as well as hold up to moisture, gun oils, and cleaners. The unique one-piece design offers an improved fit that accommodates most hand sizes as well as an aggressive no-slip diamond checkering. The thumb rest, heel rest, and finger grooves are all carefully designed to provide more control of the Ruger® Mark IV™ pistol. Note: this grip is only compatible with standard size magazine releases. If your pistol has an extended magazine release (MK IV Hunter and Competition models), you will need to replace it with Volquartsen Magazine Release when installing these grips. This grip comes with the Volquartsen Extended Bolt Release and mounting screws. Available in black - right-handed only. NOTE: not compatible with 22/45-style frames. Approximate weight: 3oz. Made in the USA by Volquartsen Firearms.