You need to refine your question- it is extremely broad. We need to know on what sort of gun you are looking for information .
yes hobby tron guns work if not then I am thinking of the wrong gun
They work similar to stun guns.
I don't think you have to have a license to work on guns, but I'm not sure about that. To manufacture guns, you have to have a manufacturers license. Check with the BATF for more information.
No. Metal bb's will not work in airsoft guns.
air pressure
Yes
NO
All of them, but, DON'T DO IT!answ2 spear guns work in their environment.
No, no paintball guns work on hydrogen.
Hasbro laser tag team ops guns and phoenix ltx will all work with each other. All Halo guns will work with each other. But if they are not of the same brand or model, they will not function together. For example, the Halo guns won't work with a phoenix ltx or any other kind of laser tag gun that exists.
CO2 pellet guns work by using CO2 for rapid fire, with CO2 the gun does not need to be pumped or recorked after every fire. You can also find spring loaded pellet guns.
ACT Labs light guns work with MAME very well. There are some configurations you will need to make and these can be found on the ACTLabs website. One of the best features is the ability to chain multiple guns together so you can have P1, P2, P3, P4, etc... guns. Currently, ACTLabs light guns do not work on LCD monitors and only work on CRT.