It definitely warrants inspection of the area and also AI taking a look at the grenade to see if they can spot what went wrong.

As far as taking a chance I would stand in front of a hundred grenades thrown at Siege Airsoft no problem, I am that confident in Tornados that it wouldn't happen again.

I expect AI is on this case like fat kid on a smarty.. Propane propellant is a mainstay in the community and has been used for years without significant incident. ( except for idiots willfully igniting it )

one in a million is still a chance, and product liability is a not a small issue

There was no scorching of the ground to see. Also, the grenade did not explode. The vented propane ignited. You can still see a little bit of flame coming out after it ignited. The person throwing it did yell fragout. I was closes to it but I had my back turned, all I felt was some heat and saw the flash light everything up. To me it looked way worse on film then actually experiencing it.

it's kind of a perfect storm of events, the propane has to atomize correctly for it to ignite.. pure propane doesn't catch on fire in absence of oxygen, so it had to atomize and mix to the correct ratio for ignition, at which point a spark can ignite it.

My solution/suggestion would be to rubberize all outside metallic surfaces so there's no metal to make contact and potentially spark.

You have a better chance to be hit by a falling Sputnik satellite than this thing does in burning a place down.

pretty lucky no one was standing around that corner that grenade was thrown at head height and could have beaned someone before it hit the ground....... one of the reasons AI usually suggests low throws/rolls.


Shocked to see one ignite, been these thrown thousands of times, including by those guys on youtube a few years back who put them through stress tests which included running it over with their truck a few times.

Well actually chances of being hit by a satellite are probably higher than that....

http://www.theguardian.com/science/l...-to-earth-live

Only difference is that you're comparing a satellite that could land anywhere and a commonly thrown simulation grenade that is commonly thrown indoors in a platform made mostly of wood.

The odds are still against your favor.

Wow this is quite shocking to me. I just heard about this post here so i logged in to check it out.

I'm pretty amazed really. The exterior of the Tornado isn't made of anything that spark when impacting concrete or even steel. Nylon shell halves, and aluminum cap is pretty non sparky.

I need to see that grenade ASAP so I can see if I can replicate the feature in next generation products.

Seriously though, I'd like to exchange that grenade with a new one ASAP Foxfels. Hit our contact page to arrange a return. We'll be happy to reimburse you for your costs shipping to us and ship you a new 'nade.

http://www.airsoft-innovations.com/pages/contact-us

Yeah, it sounds and looks completely intriguing and crazy. Looks like they had a spook kit and the spoon sparked off the floor. I can imaging that the coating on the spoon can be worn down from prolonged usage. Bare steel + concrete floor + propane = possible fireball.

Some concrete floors have metal in them. Especially in wear house type places. It created a more durable surface. That's prolly what cause the spark. Aluminum cap hits the metal in the floor causes a spark and boom.

Accidentally throws a flaming propane fireball...

...High-fives all around!

Ive seen many a AI grenade but none as spectacular as that

... Is it terrible that this makes me way more excited to pick up a couple tornados?

In all seriousness, I'm glad no one was hurt. Huge respect to MadMax for offering to reimburse for shipping and swap the 'nade. Sounds like a damn decent guy. Definitely going to buy more of your shtuff.