Viridian Weapon Technologies E Series Grip, Green Laser, Fits Taurus Judge, CR1/3N Battery, Black 900-0012 Viridian designed the GRIP LASER sight to have the same great lasers and quality that you know, now with grip activation! The moment you apply pressure to the gun grip, the laser activates. This grip laser features a green laser with constant on and pulse mode, fully adjustable windage and elevation, free batteries for life, and an industry best Lifetime Limited warranty.