Barska Push Button On/Off Switch for Barska Laser Model AU12148 Black. The push button design allows the user to activate the flashlight and switch between flash modes. Specifications for Barska Push Button On/Off Switch for Barska Laser Model AU12148: Manufacturer: Barska Color: Black Features of Barska Push Button On/Off Switch for Barska Laser Model AU12148: Push Button Design Compatible with AU12148 Green Laser Rifle Sight Package Contents: Barska Push Button On/Off Switch for Barska Laser Model AU12148 Barska AF12648: Push Button On/Off Switch for Barska Laser Model AU12148 Black