The Valken Red Laser is one of the smallest airsoft mountable lasers in airsoft, and makes for a great compliment to your tactical optics. It's a compact Class 2 red laser sight that is considered safe because the blink reflex will limit the exposure to the eye to no more than 0.25 seconds. The wavelength is measured at 630-680nm, which is lower than 5nW and safer than other Class 3R laser sights typically used in conjunction with airsoft optics. The Valken Red Laser can easily be mounted to most 20mm picatinny/weaver rail slots using the included molded mount. It also includes a coiled remote pressure switch that can be held in place on grips or handguards with the included elastic retaining band.