Crimson Trace Laserguard For Glock 19/23/25/26/27/28/32/33/36/38/39 LG436 demonstrates the technological leadership that Crimson Trace is famous for! The Crimson Trace G series laserguards for Glock handguns are the first user installed Glock laser system that meets Crimson Trace's strict standards for performance. The Crimson Trace G series laserguards feature instant activation, proven durability, extended battery life, user adjustability and are fully compatible with popular white light systems.Specifications: Manufacturer: Crimson Trace Color: Black Beam Color: Red Laser Output: 5 mW Wavelength: 633 nm Maximum Range: 50 ft Attachment/Mount Type: Trigger Guard Battery Type: 357 Silver Oxide, 1/3N Lithium Battery Life: 2+ hours Battery Quantity: 2 Reticle: Dot Water Resistance Level: Water Resistant Gun Make: Glock Gun Model: Glock 23, Glock 19, Glock 25 Length: 3 in Width: 1 in Height: 1 in Weight: 4 oz Fabric/Material: Polymer/Rubber Combination Condition: New