The Crimson Trace Lightguard™ for Glock features a highly compact and slim design specifically for ease of holstering. Its 100 lumen tactical white light seamlessly attaches to your defensive pistol, much like Crimson Trace's Laserguard®. Compatible with LG-617 & LG-619 laser sights, Lightguard also uses the same instinctive activation that Crimson Trace laser sights are famous for. Lightguard removes the need for a flashlight separate from the pistol – giving you a free hand. Both of these low-light tools can be operated separately or simultaneously with a single hand. Good for you. Bad for your target.™ Specifications: - Platform: Lightguard™ - Attachement: Trigger Gaurd Attachment - Activation: Instinctive Activation - Front - Material(s): Polymer and Rubber Combination - Installation: User Installed, No Gunsmithing Necessary - Battery Life: Two Hours - Battery Type: CR2 Lithium Battery (1) - On/Off Switch: Yes - Light Output: 100 Lumen LED Maximum - Warranty: 3 Years Complete - Fits Model(s): Glock 17, 19, 22, 23, 37, 38