ThunderFlash (civvy version of flash bangs)

[Cestrian]

its illegal to use them outside of the airsoft site, as they have to be insured just to be able to use them, but thats a good idea, i play a lot of airsoft (well used to in the summer months) and they are loud as hell, the only downside is the strike, half the time it might not work properly, but in theory it would make a pretty nice setup, but they are legal to buy by anyone over 18 from websites, and if your talking about post shtf i dont think the law will apply if its for home defence