Instructables
Picture of Ballistic Knife
IMG_0972.jpg
IMG_0973.jpg
IMG_0974.jpg
Hey, guys. This is an easy PVC ballistic knife I made recently. I won't be telling you how to make it, that's a trade secret, but you might be able to do it from the pictures. I used a trumpet valve spring in the demonstration picture, but I usually use a spring from an airsoft gun. Tell me what you think!
1-40 of 49Next »
mcogan2 months ago

very illegal

Ddawg7473 months ago
The website is INSTRUCTables NOT SHOWOFFables
dpene5 months ago
That is 100% illegal in the u.s. and the uk dont listen to people saying its not a ballistic knife propelled by a spring carries a minimum of 5 years in prison for possesion or sale a explosive proppelled ballistic knife however isnt illegal but is very restricted under the aow (all other weapon) category so if I were you I would take it appart and never build it again. Yes its cool but is it worth 5 years in prison?
That's actually illegal

no it isn't

In the USA a spring powered ballistic knofe is illegal

monkeyman26446 months ago

The website is called INSTRUCTables, don't be all hey look what i made isn't this cool? I'm not going to tell you how to make it though

macncheeseguy8 months ago
I agree with jc industry

what kind of knife is it

Please add instructions or at least send instructions to me
(removed by author or community request)
Ouranos Ouranos9 months ago
I feel stupid sorry for all the comments I placed I clicked on the POST button waaaaaay too many times
I don't think instructions are a good idea...
Finley371 year ago
That's awesome
Maybe a separate app called 'Idea'ables is needed then instead of Instruct! As in instructions!!
Screw everyone cracking on you. Nice ballistic knife.
neo716651 year ago
Hope ya don't get caught with that, FBI watch lists don't just go away.
HeathSM1 year ago
I now how to make it its easy really
instructions r not neaded its quite obvious how to make
get two pvc pipes one that can fit in the other
attach a knife to the tip of the smaller one
drill a hole in the smaller tube and in the larger tube so they wilk line up
put a spring in the bottom of the larger tube
attach something to the tope of the large tube like a pin to fit thru the hole in latger tube and smaller tube so when u pull it out the spring will push the small one out
It's not a 'trade secret' to tell us how to make it, it's an 'instructable.'
Instructions pleeeeeeez!!!
really cool, but under my understanding ballistic is in relation to explosives, i read the law it says this classifies as a ballistic knife. In my opinion this should be a "spring knife" a ballistic knife should be related to an explosive like a percussion cap (from bullets or Hilti shots) despite the definition saying any knife that is a projectile not propelled by explosives. Lastly the law does say its illegal to manufacture, sell, possess or import a ballistic knife. I'm happy b/c their not illegal in Canada :D
Kona-chan1 year ago
this is really insane, sorry for saying it,
but i'm pretty sure this counts as: song distens weapon
and just not under fire weapon, but if i was you, look out next time, with posting stuff
heydiddlediddle (author)  Kona-chan1 year ago
It aint illegal, so I aint worried.
ringai1 year ago
In the US and UK, these knives are illegal for private citizens to possess. You should consider how and where you share.

Valve springs do the job a bit better, though.

spylock ringai1 year ago
Not illegal,as long as the blade isnt over two inches or double edged.
In the UK, that would count as a "weapon", not a tool, and would probably fall under "concealed weapon" legislation as well.
The way things are looking here, it dont look like it will be to awful long before things will be the same way,unless of course the people start raising hell.The so called patriot act has helped to put us in a pickle as far as our Rights go.The good thing about our Constitution,and Bill of Rights though is it can always be changed back.
ringai spylock1 year ago
Incorrect. Ballistic knives are most certainly illegal in the US:

http://codes.lp.findlaw.com/uscode/15/29/1245
Johnhall441 year ago
Nice simple design, it would be easy to copy. Just add to add a small model rocket motor, flip out stabilization fins and a titanium alloy for the trigger mech then you can hunt deer =P
heydiddlediddle (author)  Johnhall441 year ago
Yeah... pretty sure that's not legal. Stick with a 30-30.
Lol, it counts as a pocket knife/model rocket =P 30-30 is overpowered for deer.
heydiddlediddle (author)  Johnhall441 year ago
That's what I use...
7.62x54r, try it sometime. Its magical =P
heydiddlediddle (author)  Johnhall441 year ago
lawlz
You can even hunt planes with that ammo.
mosin%20anti%20aircraft%20battery[1].jpg
PLEEEEEEEEEEEEEEEEZZZZZZZZZZZZZZ post instructions
Cool. How heavy Is the knife assembly (not including the handle)?
heydiddlediddle (author)  egwillfriedel1 year ago
It's really light (until you fill it with solder, that is!). It's really just the pvc and a knife blade super glued together (with a nerf dart as a spacer). If you want a more technical response, I do have a metric scale somewhere...
heydiddlediddle (author) 1 year ago
Sorry guys, I'm not posting because this is a very dangerous weapon and I don't want to chance a serial killer seeing this and thinking what a good idea it is. This thing will easily penetrate two inches of drywall with an airsoft spring installed. You can use it to dispense chapstick too, BTW.
1-40 of 49Next »