Feyachi Tactical Green Laser Sight with Picatinny Rail Mount - Include Barrel Mount Cable Switch Powerful Green Laser: Built with CLASS IIIa green laser (Max Output  5mw) which feaures 532 nm wavelength. Highly visible in any environment with improved accuracy which reaches 100 to 30 ft during the day and up to 1000 ft at night. Durable and Adjustable: Made of aerospace grade aluminum with a hard anodized finish that stands up to high impact and the shock created by caliber rifles, which works well in any weather condition. The sight is fully adjustable for windage and elevation, which is ensures precise targeting. Dual Mounting System: Feyachi Tactical Green Sight Laser Dot with a picatinny mount can install on 20mm picatinny or weaver rail. And it also can be installed onto riflescope with supplied 1'' ring adapter. Easy installation according to different rifle types. Quickly Operated Switch: The Feyachi Green Sight can be quickly operated via a rear push button or a momentary cable pressure switch according to different needs Wide ApplicationsFits for novices and professionals in any environments, rapid- firing,shooting or moving target besides normal shooting.