Crimson Trace DS-121 Defender Series™ Accu-Guard™ Laser Sight for Glock Full-Size & Compact Pistols

The DS-121 Defender Series™ Accu-Guard™ Laser Sight by Crimson Trace fits GLOCK Full-Size and Compact pistols. The Defender Series sets a new standard in laser sight for GLOCK pistols by providing cutting edge design, superior technology, and an affordable price tag. The DS-121 features Beam Lock™ Adjustments so that the user can easily adjust laser sighting for both windage and elevation, and the unit is pre-sighted at the factory at 50 ft. The Dual Side N-Gage™ Activation Buttons provide a large, easy-to-find, bright red activation button, which emits a powerful (5mW peak, 620-670nm, Class 3R) red aiming laser.Fits: GLOCK THIRD GENERATION 17, 17L, 19, 20, 20SF, 21, 21SF, 22, 23, 31, 32, 34, 35, 37, 38, GEN4 17, 19, 20, 22, 23, 34, 35, AND GEN5 17, 19, 19X, 45