spare battery compartment or as a main battery compartment carrying a 9 volt nickel cadmium battery therein of well known type a light source 46 is provided in front of compartment 40 in extension 49 and includes a light bulb and reflector assembly 47 which is carried in a cap 50 the cap 50 has threads 51 engaged with threads 52 on extension 49 the cap 50 also has a lens 53 and a perimeteral o ring 54 for water proofing an optional lens not shown can be provided to convert the emitted light to the infrared spectrum above compartment 40 another hollow tubular compartment 60 is provided which can be used as a battery compartment but in the embodiment illustrated is used as a visible laser containing compartment to be described compartment 60 is open at the ends and closed off at the rear as shown in fig4 by a threaded cap 61 inside compartment 60 a visible laser unit 64 is provided having a lens 63 of well known type of various milliwatt rating and available from toshiba tokyo japan the laser unit 64 is provided with externally accessible windage and elevation adjustment controls not shown which can be accessed by removing caps 66 and 67 in well known manner a battery 65 is provided for energization of unit 64 which in this embodiment is a 9 volt lithium battery of well known type an additional hollow tubular compartment 70 is provided side by side with compartment 60 open at both ends and closed off at the rear as seen in fig4 by a cap 71 the compartment 70 carries a laser unit 80 which has a.