ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Springfield XD 4/5in Black. ArmaLaser designed these Green Laser Sights with 2 options for activation: the FLX switch for intuitive instant activation and the switch on the GTO that you can access with your index finger. The master on/off switch on the ArmaLaser GTO/FLX Red Laser Sight lets you turn it off to use BUIS or other optics. Customize your Springfield pistol with the ArmaLaser GTO/FLX Finger Touch Polymer Green Laser Sight. Specifications for ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Springfield Handguns: Manufacturer: ArmaLaser Color: Black Beam Color: Green Laser Output: 4 mW Wavelength: 520 nm Maximum Range: 50 ft Attachment Type: Weaver Picatinny Battery Type: 357 CR1/3N Lithium Battery Life: Up to 2.3 hours Battery Quantity: 2 Gun Make: Springfield Armory Fabric/Material: Zytel FRN Polymer Mount Type: Weaver Features of ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Springfield Handguns Grip-Touch Activation by using FLX Side-Touch Activation without FLX Ultra-bright Class 3R 520nm Package Contents: ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Springfield Handguns What firearm models does the manufacturer say ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Springfield Handguns is compatible with? The manufacturer says that ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Springfield Handguns is compatible with Springfield Armory XD-S Springfield Armory XD Springfield Armory XD-M 3.8in Springfield Armory XD-M Springfield Armory XD-M 5.25in Springfield Armory XD Mod2 .40 S&W Springfield Armory XD Mod2 9mm Springfield Armory XD Mod2 4in Springfield Armory XD Mod2 5inArmaLaser GTOGFLX10: GTO/FLX Finger Touch Green Laser Sight for Springfield XD 4/5in Black