Yes
yes you are allowed
Yes you can bring your own nerf gun
Anything possible
Yes, I brought a modified Nerf gun to a 7 year old's birthday party & destroyed the opposition. Those little monsters didn't have a chance against my superior accuracy & range!
You are allowed to bring your own guns. You can only use their darts or discs. I dont know about mods, but i wouldn't think mods are allowed.
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