Hilight Performance Series Dual Purple/Blue Laser Sight Glock 17 Glock 19. The mounting system mounts to all Picatinny rails with 3+ slots as well as many with 2 slots; the mount also fits single slot rails such as Glock 17/19 but not single-stack/slimline models such as Glock 48/43x. Specifications for Hilight Performance Series Dual Purple/Blue Laser Sight: Manufacturer: Hilight Color: Black Beam Color: Purple Blue Finish: Hard Anodized Laser Output: 5 mW Wavelength: 405 nm Maximum Range: 1 miles Attachment Type: Picatinny Battery Type: Lithium Ion Battery Life: 4 hours Operating Temperature: -20 - 50 Celsius Water Resistance Level: Water Resistant Gun Make: Glock Gun Model: Glock 17 Glock 19 Gun Frame Size: Full Size Compact Length: 2 in Width: 1.4 in Height: 0.75 in Weight: 2.3 oz Fabric/Material: Aircraft Grade Aluminum Features of Hilight Performance Series Dual Purple/Blue Laser Sight CREE XM-L2 LED with steady and strobe modes delivering powerful illumination for enhanced visibility. Built-in rechargeable battery powers both LED and lasers charged via a Micro USB port plug (included). Lasers and LED flashlight can be turned on or off independently with vertical and horizontal tuning using the included Allen wrench. Made from hard anodized military aircraft-grade aluminum lightweight yet robust to withstand harsh environments. Low profile and ideal for subcompact pistols rifles and shotguns with Weaver or Picatinny rails. Requires at least 27mm (1.06in) of clear space for installation. Fits any rail-equipped firearm with included mounting bolt designed for a wide range of rail lengths. Contact HiLight Tactical for compatibility questions. Backed by a 1-year warranty with responsive customer service to address any issues. Package Contents: Hilight Performance Series Dual Purple/Blue Laser Sight Charge cord Mounting hardware Laser adjustment wrench Instruction manual What firearm models does the manufacturer say Hilight Performance Series Dual Purple/Blue Laser Sight is compatible with? The manufacturer suggests that Hilight Performance Series Dual Purple/Blue Laser Sight is compatible with Glock 19 Glock 17Hilight P3PB: Performance Series Dual Purple/Blue Laser Sight Glock 17 Glock 19