Gmconn Blue Laser Sight for Pistol Low Profile Blue Beams for Guns Handguns with 0.9 Inch Installation Space

??21MM Picatinny + 0.9Inch Space ?The Tactical blue laser sight for pistol requires 21MM SLOT Picatinny with 0.9 inch installation space from cross slot to trigger guard. There are Three alternative screw holes on the blue laser sight, choose one for your preference and use the ONLY ONE SCREW to install the blue gun sight in a perfect location.

??Safe & Adjustable Laser Sight?The Blue laser beam is very safe with intensity/wavelength: <5mW peak, 532nm, Class IIIA. The blue laser for gun is adjustable by using included allen wrench for windage and elevation. In order to protect the threads of the handgun and pistol laser, please slowly tune Elevation and Windage interactively. Only one direction may damage the the threads.

??Ultra-Compact and Low Profile?The blue airsoft gun lasers is ultra compact?low profile and lightweight with fiber-reinforced nylon material. The blue laser sight for Glock 19 airsoft gun is very smooth to match with a tactical holster.

??Rechargeable Built-in Battery?The Blue Laser is powered by a built-in rechargeable battery, which is charged with an USB-C Cable and can provide 5 hours running time for the airsoft laser for glock 17 23.

??Powerful & Friendly?The bright and precision blue gun laser for pistol is highly visible in any environments, (50 to 100ft/the day; up to 1000 ft./night).The pistol laser sight for handguns are friendly for left and right-handed users with ambidextrous on/off buttons.

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