ArmaLaser GTOG/FLX Finger Touch Green Laser Sight for Beretta PX4 Storm 45D Black. This green laser sight by ArmaLaser let's you activate the laser by using the function button on your pistol or you can choose the standard side-touch activation. Using what is arguably the most sensitive laser system in existence the Beretta GTOG/FLX allows you to turn on your laser sight with your palm before taking a single step. As a result you get the benefit of a virtually indestructible laser sight that is precisely focused to the user's natural grip. In response the laser will activate at the slightest pressure against the grip negating the possibility of accidentally activating the laser by inadvertent movements. Go ahead and trust the Beretta GTOG/FLX - we guarantee you will be satisfied Specifications for ArmaLaser GTOG/FLX Finger Touch Green Laser Sight for Beretta Handguns: Manufacturer: ArmaLaser Color: Black Laser Output: 4 mW Maximum Range: 50 ft Attachment Type: Weaver Picatinny Battery Type: 357 CR1/3N Lithium Battery Quantity: 2 Gun Make: Beretta Mount Type: Weaver Features of ArmaLaser GTOG/FLX Finger Touch Green Laser Sight for Beretta Handguns Grip-Touch Activation by using FLX Side-Touch Activation without FLX Ultra-bright Class 33R 635nm Package Contents: ArmaLaser GTOG/FLX Finger Touch Green Laser Sight for Beretta Handguns What firearm models does the manufacturer say ArmaLaser GTOG/FLX Finger Touch Green Laser Sight for Beretta Handguns is compatible with? The manufacturer says that ArmaLaser GTOG/FLX Finger Touch Green Laser Sight for Beretta Handguns is compatible with Beretta 92FS Beretta PX4 Storm .45 ACP Beretta APX .40 S&WArmaLaser GTOGFLX85: GTOG/FLX Finger Touch Green Laser Sight for Beretta PX4 Storm 45D Black