CRIM1049 Features: * Laser sight * Material: Polymer and rubber * Attachment: Trigger guard * Activation: Instinctive activation front * Installation: User no gunsmith needed * Sighting: Factory sighted 50 feet * User adjustment: Wind age and elevation * On and off switch: No * Battery life: 4 Hours * Made in USA Specifications: * Battery type: 0.33N 3V Lithium(1)or 357 silver oxide * Laser Output: 5mW Peak/633nm class3R Dimensions: * Overall dimensions: 5" H x 3" W x 2" D