If you live someplace where fireworks are illegal but you can shoot firearms on your own property, then some of this stuff can be fun. (Also way more expensive then fireworks.) But almost none of it is useful for anything else.
Possible Exceptions:
- “Bird Bombs” can be useful for scaring away winged or four legged pests. (You are facing severe legal trouble if you fire a “Bird Bomb” or a blank at a two legged pest.)
- Bean bag rounds can be useful for police work. Might also be worthwhile against a neighbor’s dog on your property that doesn’t run from load noises, but be aware there is a chance bean bags will kill. (Again, serious legal risk if a civilian uses them against a person.)
- Flare rounds useful for signaling. (Also useful for starting fires if they hit something while still burning.)
A couple of warnings:
- As stated above, an 182dB bang will damage, if not destroy, your hearing, if it happens at the end of the barrel, 18 to 32 inches from your ears.
- If it really is a “grenade”, that is it fires a charge that explodes some distance from the barrel, there is a legal restriction on how large that charge can be, for civilian possession. I don’t remember the amount, but it is not much, and certainly not big enough for the claimed “182dB bang, 1.5 to 2 million candlea flash and over pressure on 1.5 to 2 atmospheric pressure units.”
- The “Flame Thower”, “Dragon’s Breath”, etc, rounds all use magnesium metal shavings (or some other flammable metal.) They will ignite just about anything they touch while still burning. If a burning piece gets left in your chamber or barrel somehow, I think it is likely to damage your gun, but I’ve never heard of this actually happening. Also, they are only impressive when fired at night.
(Off topic, note all the spelling, mis-wording and grammar errors on the Firequest web site. And this is a company that lives by marketing hype.)