ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Sig P229 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 Sig Sauer with the ArmaLaser GTO/FLX Finger Touch Polymer Green Laser Sight. Specifications for ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Sig Sauer 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: SIG Sauer Fabric/Material: Zytel FRN Polymer Condition: New Mount Type: Weaver Features of ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Sig Sauer 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 Sig Sauer Handguns What firearm models does the manufacturer say ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Sig Sauer Handguns is compatible with? The manufacturer says that ArmaLaser GTO/FLX Finger Touch Green Laser Sight for Sig Sauer Handguns is compatible with SIG Sauer P250 Compact SIG Sauer P250 Subcompact SIG Sauer P250 SIG Sauer Pro SP2022 SIG Sauer Mosquito SIG Sauer P320 Compact SIG Sauer P320 SIG Sauer P226 SIG Sauer P229ArmaLaser GTOGFLX69: GTO/FLX Finger Touch Green Laser Sight for Sig P229 Black