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Name: Laser cannons
Type: Energy
Weight:

(Small): 500 lbs.
(Medium): 0.5 Tons
(Large): 1 Ton
Effective Range: 0.5 Miles
Usage: Mounts on any kind of structure or on any vehicle large enough to hold it.
 
Description:
A cannon that fires a laser beam and uses a battery built into the cannon itself. Can optionally use the battery of the vehicle it's mounted to. The bigger the size, the more energy it consumes. Some variants can shoot a steady beam for a long period of time.