Key Features: Beautiful Design, G10 Material, Thumb Notch Standard, CNC Machined, Fully De-horned & Improved Slide Stop Access. Cross Hatch design perfected for all Ruger 22/45's with removable grips. Please note these grips will NOT fit the Ruger MK3 as they are a different family of pistols. They are CNC machined to exact tolerances from a material called G10. Which is one of the very best materials for hand gun grips, its about 10% heavier than carbon fiber and nearly as strong as 6061 aluminum. The material will not crack or chip like acrylic or wood grips. Is not cold to the hand like aluminum grips, nor will it scratch or absorb moisture. It is the most durable material for handgun grips making them a perfect addition to your pistol.