CVLIFE Green Laser Sight Compatible with Picatinny Rail. Compatible Devices: Picatinny Mount. Mounting Type: Picatinny Mount. Reticle Type: [Simple Reticle]. Item Package Dimensions L x W x H: 4.06 x 3.35 x 1.26 inches. Package Weight: 0.15 Kilograms. Item Dimensions LxWxH: 3.94 x 3.54 x 1.1 inches. Bright And Clear Green Laser: Class IIIA laser, less than 5mW. Clear and bright laser up to 2000 meters at night and 200 meters in the daytime. Made of Aircraft Grade Materials: Made of aircraft-grade aluminum, it boasts high hardness and lightweight, making it easy to carry. Shock and drop resistant. Magnetic Charging And Long Battery Life: We designed our green laser to be magnetically rechargeable, eliminating the need for frequent battery changes. It takes only 2 hours to fully charge and can be used continuously for 4 hours. Compatible With Picatinny: Compatible with Picatinny rails only, this green laser fits 21mm Picatinny rails for easy and quick installation. Big Switch And Single Mode: The large switch design allows you to easily turn the laser on and off.