The Crimson Trace Lightguard Weapon Light is a 110 Lumen LED White Light designed to securely fit around the triggerguard of a host of popular pistols. Featuring ambidextrous Instant Activation with Constant and Momentary modes, the LTG-770 offers over one (1) hour of illumination with two (2) 1/3N batteries (included). With ruggedized polymer construction and a rapid change battery cap, this tactical light offers effective illumination for M&P Shield owners. A best-in-class weapon mounted light from the brand you trust for personal protection optics. Features110 Lumen OutputAmbidextrous Instant ActivationConstant and Momentary ModesRugged Polymer Construction1/3N Batteries Included DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.