ArmaLaser GTO/FLX Finger Touch Red Laser Sight for Sig 1911R Black. ArmaLaser designed these Red 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 Red Laser Sight. Specifications for ArmaLaser GTO/FLX Finger Touch Red Laser Sight for Sig Handguns: Manufacturer: ArmaLaser Color: Black Beam Color: Red Laser Output: 4 mW Wavelength: 635 nm Attachment Type: Weaver Picatinny Battery Type: 357 CR1/3N Battery Quantity: 2 Gun Make: SIG Sauer Mount Type: Weaver Features of ArmaLaser GTO/FLX Finger Touch Red Laser Sight for Sig Handguns Grip-Touch Activation by using FLX Side-Touch Activation without FLX Ultra-bright Class 33R 635nm Package Contents: ArmaLaser GTO/FLX Finger Touch Red Laser Sight for Sig Handguns What firearm models does the manufacturer say ArmaLaser GTO/FLX Finger Touch Red Laser Sight for Sig Handguns is compatible with? The manufacturer suggests that ArmaLaser GTO/FLX Finger Touch Red Laser Sight for Sig 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 P229 SIG Sauer 1911R SIG Sauer P320 Full SizeArmaLaser GTOFLX78: GTO/FLX Finger Touch Red Laser Sight for Sig 1911R Black