Crimson Trace LG406 LaserGrip SW Sigma
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This Laserguard seamlessly fits the Smith & Wesson Sigma adding to the sleek, refined look of the Sigma adding very little bulk. It is made of polymer with a rubber overmold on the front instinctive activation pad. Adjustable for windage and elevation, the Laserguard for Sigma offers a 5mW peak, 633nm, class IIIA laser. One 1/3N 3V Lithium or two 357 silver oxide batteries provide more than four hours of on-time use and a five-year shelf life.