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Thunder B Co2 Airsoft Paintball Simulation Sound Grenade (12 Shell Set / Distraction Grenade)

7 Customer Reviews

by Justin B. on 05/28/2012
"These are incredible!

Having used every Thunder-B shell type, these are the only shell type that give reliable detonation every single time.

These grenades are fantastic. They put out about 120-130 decibels. These are definitely louder than a firecracker. Anybody that it goes off near will DEFINITELY call out, if not be disabled long enough for you to shoot them. There are no doubts that this grenade is just as loud as you could want it to be.

Assembly, disassembly, maintenance, and preparation is pretty quick and simple.
Very durable (though the metal bends sometimes after rough falls, so you have to bend it back)

Head assembly:
~Firing pin head
~Firing pin point
~Safety Pin
~Black metal sub-connector
Cylinder assembly:
~Aluminum cylinder
~Aluminum bottom cap (with rubber stopper)
Disposable shell

Pull the hammer back and use the spoon to hold the hammer back. Insert the pin into the head to hold the spoon (and thus hammer) in place. Screw the black metal sub-connector into the bottom of the head.
Loosely screw the aluminum bottom cap onto the aluminum cylinder.
Insert a 12g CO2 cartridge into the Aluminum cylinder.
Screw the cylinder assembly into the bottom of the black metal sub-connector (attaching it to the head).
Once the sylinder assembly is tightly screwed in, start to screw in the aluminum bottom cap. You will notice that the firing pin head is slowly raising toward the safety pin (which blocks the hammer's path). Stop tightening the bottom cap when the firing head reaches the safety pin.
TIGHYLY screw on the disposable shell.

For the most part, if everything is tightened well and the disruption shells are being used, these will work every time. No reliability issues at all.

These are VERY satisfying.
by Francis W. on 04/12/2012
"I bought the first generation Thunder-B and had mixed results. It was notoriously unreliable and many times the shells did not blow. These third generation shells are much better and I have not had any failures. My only negative critique is, these MUST be rolled or thrown on to a soft surface or else, you risk damaging the firing mechanism and spoon. If you want a big boom and reliable detonation, get these. I threw one in to the men's room at my station (police) and all the guys in there thought I was really, really cool.
by Sallyann l. on 01/16/2012
"WOW these grenades are awesome and effective im telling u get them if u have the money these will be a grate acset to ur airsoft games and loadout if u take airsoft very seroius then get these thell make ur wars and scenarios more realistic and fun!!
by Jamie T. on 11/06/2011
"I received these about 2 days ago and so far everything seems to be well made and properly functioning. I love evike and am always pleased with thier products.
by Donna R. on 02/17/2012
"i was very pleased with the performance of this. until i used it again i went through about 4 cartages or 5 and then when i tryed again the whole metal core broke out of it and hit my garage it left a big dent in it... gotta send this back to evike now..... but overall it was useful and fun in airsoft while it lasted.
by Brian C. on 09/06/2011
"f you are going to buy the Hakkotsu Sound grenades, these are the only ones you should fool with. They are extremely loud and they activate without any modification. The other versions, including the Version 2 or 2011 update come with the original core, which means no consistency and sometimes no bang.

This version comes with the new core which includes the following modifications.
1. A stronger spring on the hammer to ensure the CO2 canister is punctured.
2. A longer punch to ensure deeper penetration.
3. A hole in the lower cap that "meters" (speeds flow of gas into the distraction device) the gas glow
4. A better design on the sound canisters. They form a better seal and the shape forces a rupture at the same place every time for more consistency.

Looks realistic
Consistent activation times (3 sec)
Extremely loud - even in an open area outside
Easy to load - No need to screw on additional pieces that are easily lost and fail to work anyway.

None in comparison to the 1st generation cores.

Make sure your core has a hole in the bottom as this let's you know it is a second generation core.
by Charlie A. on 01/05/2015
"I was excited to finally get some of these but the first time i actually got to field this it broke. The pin holding in the spoon broke so i had to find the spoon. After fixing it i had a bunch of duds and finally today 1/5/15 i decided to fix the pin for the spoon again but the threads inside the thunder b head seemed to have cracked so now the head of the thunder b wont even stay on.

Pros: good for clearing rooms. Loud. Have a bunch of different shells you can choose from.

Cons: cheap build quality, the plastic threads break.

Maybe i just got a defect. Try it out for yourself its super fun when it actually works.