M37 8MM Paintball Machine Gun
If only the world's conflicts could be solved with paintball fights.
But with humanity being the way it is, an arms race for bigger and better guns would ensue. Somewhere along that path the M37 8MM Paintball Machine gun would emerge. And who knows what else - a paintball nuclear bomb?
If you want to slaughter your enemies with paint then look no further soldier. This M37 replica has a custom electronic trigger that fires in semi-auto 3 shot burts and full auto modes,
Bonus use - Paint people's houses for a living? Simply fire her up with their chosen colour and get the job done in minutes. Splat.