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Thread: Grenade

  1. #1 Grenade 
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    Hello everyone....

    How would you go about making a flashbang grenade???

    Matt


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  3. #2  
    Forum Cosmic Wizard SkinWalker's Avatar
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    First, you start with a graduate degree in chemical engineering...


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  4. #3  
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    lol, yes skinwalker :-D , just buy a flashlight, a flash bang gernade, some rope and batteries. Throw the Flashlight, rope and batteries into the bin, and KAZAM!!!! you have a flashbang left....... 8) kids
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  5. #4 Re: Grenade 
    Forum Sophomore DarcgreY's Avatar
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    Quote Originally Posted by mattinventor
    Hello everyone....

    How would you go about making a flashbang grenade???

    Matt
    Unless you're in law-enforcement or the military, what would you need a flashbang for?
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  6. #5  
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    Well that's not your problem. If he wants to assault a bank with it, that's his problem.
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  7. #6  
    Forum Sophomore DarcgreY's Avatar
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    Silly me, a practical purpose like that didn't occure to me. :wink:
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  8. #7  
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    Flashbang grenades are made from combustables that produce a great amount of light and pressure very rapidly. Probably a 'fast' gunpowder (like blank powder) and an additive to make the 'flash'; something similar to the old fashion photographer's illumination powder.

    The tricky part is the fuse. After positive activation, the fuse must delay long enough to allow the grenade to be 'delivered'. Possibly a short length of cannon fuse ignited by a large rifle primer?

    I used to know three guys who made their own flashbang grenades. I can't remember their real names, but we called them "Gimp", "Three Finger", and "Stubby".
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  9. #8  
    Forum Professor Pendragon's Avatar
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    Must be awesome to be able to make such things (no not for robbing a bank, just for fun :P ). Maybe Magnesium is used as additive for the flash? I think I remember this from a chemistry test long ago, but maybe this is the same as the photographer powder that's allready mentioned.
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  10. #9  
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    Don't forget to put it in a wrapper that splits but does not fragment.
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  11. #10  
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    Plastic does the trick, the grenade itself also has holes in the sides to allow for the blast to push out but with no fragmentation. I will not get into discussing how to build one however the chemicals used are magnesium and ammonium perchlorate.
    The hand of time rested on the half-hour mark, and all along that old front line of the English there came a whistling and a crying. The men of the first wave climbed up the parapets, in tumult, darkness, and the presence of death, and having done with all pleasant things, advanced across No Man's Land to begin the Battle of the Somme. - Poet John Masefield.

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  12. #11  
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    I disagree. Unless your talking HDPE, the use of plastics in pyrotechnics is generally avoided. They have a habit of splitting into fragments which can cause some nasty injuries.
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  13. #12  
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    PE in a grenade ?? With a burn rate of around 900m/s dont think thats gonna give me much time to throw it !!

    Nope, Im talking about a plastic bag style wrapping keeping the chemical components locked tightly together encased in a strong metal with large holes around the outside. Unless of course you have injured yourself once with a plastic bag?

    I dont think fragmentation will be a problem
    The hand of time rested on the half-hour mark, and all along that old front line of the English there came a whistling and a crying. The men of the first wave climbed up the parapets, in tumult, darkness, and the presence of death, and having done with all pleasant things, advanced across No Man's Land to begin the Battle of the Somme. - Poet John Masefield.

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  14. #13  
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    lol ok sorry I was assuming you meant the use of hard plastics as the outer case. Just don't place the plastic bag over your head and hyperventalate
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  15. #14  
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    Quote Originally Posted by Lucky
    lol ok sorry I was assuming you meant the use of hard plastics as the outer case. Just don't place the plastic bag over your head and hyperventalate
    or put a huge dustbin big around your head and body after you have eaten vindaloo mixed with with baked beans and THEN hyperventilate.
    The hand of time rested on the half-hour mark, and all along that old front line of the English there came a whistling and a crying. The men of the first wave climbed up the parapets, in tumult, darkness, and the presence of death, and having done with all pleasant things, advanced across No Man's Land to begin the Battle of the Somme. - Poet John Masefield.

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  16. #15  
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    I like flashbangs.
    I used them once at air cadets.
    And smoke grenades.
    They are fun.



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  17. #16  
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    Quote Originally Posted by SkinWalker
    First, you start with a graduate degree in chemical engineering...
    I am agree with you! If you want to produce flashbang grenade, you should know related chemical knowladge. Otherwise, you not only produce it, but also hurt yourself.
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  18. #17  
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    well, if i were to point you in any direction that would lead you to finding the awnser i would point you to http://anarchistcookbook.com/

    i dont visit there forums much, but if you have DLed the file copy of the anarchist cookbook, it might have some info on it.


    ... btw, while posting i remebered a Burn Notice episode where they made a flashing packet. if any of you watch that and remember what they said about it, you could post it here.
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  19. #18  
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    the military ones use a standard grenade fuse- 3 seconds, the outer case is water proofed cardboard. cannon fuse would work , delay dependent on length.

    here is a flash formula;
    Mg 34%
    Al 26%
    KClO4 40%

    Black powder for the bang part.

    I woul say this is back woods farm use only.
    Don't be surprised if BATF visits you if you actually use one in public.
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  20. #19  
    Forum Senior Kukhri's Avatar
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    Though I'm normally inclined to discourage this kind of project, dabbling with combustibles often appropriately penalizes the participating parties.

    It's ok. You won't get hurt. You were well trained by the intranets and Counter-Strike.
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  21. #20  
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    well i would say it would be safe to tell him here on the forums because a smart criminal would have just googled it, but then again, 85% of criminals make stupid mistakes....
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  22. #21  
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    Believe me there is a lot more than firecracker formulas out there. Lookup rougescience.com for a pyrotechique thrill.
    Besides its not illegal knowing HOW to do something illegal it's actually doing it that is. Besides that the dummies dealing with explosives are culled out pretty rapidly by their own mistakes, somewhat Darwinian.
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  23. #22  
    Forum Ph.D. Leszek Luchowski's Avatar
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    Quote Originally Posted by DarcgreY
    Silly me, a practical purpose like that didn't occure to me. :wink:
    I find it rather disturbing that law enforcement is not a practical purpose by your book. Do you mind if I ask what country you are from?
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  24. #23  
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    What book?, its a website.
    Good ole USA , home of the free ( so Far)
    Further more there are laws here concering building destructive devices.
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  25. #24  
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    ...
    Though I'm normally inclined to discourage this kind of project, dabbling with combustibles often appropriately penalizes the participating parties
    ...

    oh boy, i know that one all to well....

    a few years a go i built my own cannon on a "spur of the moment" idea, so it ended up being a steel pipe with tin foil taped to cover one end, loaded with gunpowder, and a tinfoil ball, with a small hole drilled at the base for a lighting spot.

    i ended up with a ruptured eardrum, some chared fingers(i was holding a match, still have some blakness on them) and small cut on my leg.(well it wasnt small, but it wasnt deep either, so i dont want to say a gash)

    but hey i got to wake my neighbors up at 12:00 with a loud ass explosion.
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  26. #25  
    Forum Freshman Renegade322's Avatar
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    I once decided to have a little fun and see if i cud shoot an artillery shell i got off the internet... I did thats all there is too it... it knocked down a tree lol
    Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
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