Crimson Trace S and W J-Frame Round Butt, Lasergrip with Holster Free IWB Holster included Instinctive activation and fully adjustable for windage and elevation Manufactured to fit seamlessly with the firearm frame No gunsmithing or frame modifications required for installation Rubber overmolded, front activation, master on/off switch Laser Output 5mW Class 3R Red Laser