Introduction: Ballistic Knife (removed Because Probably Illegal)

Picture of Ballistic Knife (removed Because Probably Illegal)

Yah, if this Instructable could be taken down, that'd be great.


126andy (author)2015-08-04

If it shoots its illegal in the US

spylock (author)126andy2015-08-04

I guess its because its mechanical,its not much different crossbow or a blowgun.I dont remember seeing or making either comment on this though, because I know its not legal,maybe I didnt look well enough,and thought it was a switch blade,its kinda cool anyhow..

ringai (author)spylock2015-08-05

Yeah, that's easy enough to do. I come back to comment replies that are years old and wonder what the heck the conversation was about.

The possession thing is to remove the potential for harm/crime/etc.

dpene (author)2014-05-16

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?

Zappzipper (author)dpene2014-12-04


ringai (author)Zappzipper2015-08-05

It is illegal no matter how often you dispute it. It doesn't matter if the knife is homemade or factory made.

Possession, not only its use, is illegal.

You can review the relevant US law here:

There are _several_ laws prohibiting this in the UK, but I can't lay hands on them.

Connor k (author)2015-07-15

What size of PVC is it

ZachShazzy (author)2015-06-26

It's awesome, ignore the hate bruh

Ravenx1 (author)2015-03-15

It's a pvc tube cap end dowel nail spring and pin made from a bolt on the end of a clip. Spring in back end of tube glued into cap end nail"knife" in front end of dowel compress spring put pin in hole in dowel to lock it. Point press clip. Dowel shoots out. Smoke ace go make it.

ballistic_mania223 (author)2013-11-08

That's actually illegal

no it isn't

PandaTank (author)monkeyman26442014-05-12

In the USA a spring powered ballistic knofe is illegal

Zappzipper (author)PandaTank2014-12-04


mcogan (author)2014-07-28

very illegal

Zappzipper (author)mcogan2014-12-04

no it isnt stupid just dont build it

AndrewM4 (author)2014-12-03

Ok now everyone's saying that this is illegal but I mean come on people this thing is AWESOME PERIOD. So if you don't like it then don't make it. Saying it's illegal aint gonna keep us people from making awesome things like cannons and swords that are funnily more approved than a small little knife that fits in your pocket also known as a pocket knife witch is also illegal for me to carry but I still do. So unless someone takes it from me it's mine buddy.

Zappzipper (author)AndrewM42014-12-04

so true man u feel me man

Ddawg747 (author)2014-07-09

The website is INSTRUCTables NOT SHOWOFFables

monkeyman2644 (author)2014-04-08

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

macncheeseguy (author)2014-02-24

I agree with jc industry


what kind of knife is it

Halphinian (author)2014-01-04

I feel stupid sorry for all the comments I placed I clicked on the POST button waaaaaay too many times

SMOKINACE99 (author)2013-06-18

Please add instructions or at least send instructions to me

Halphinian (author)SMOKINACE992014-01-04

I don't think instructions are a good idea...

Finley37 (author)2013-10-16

That's awesome

WolfCrafter (author)2013-10-12

Maybe a separate app called 'Idea'ables is needed then instead of Instruct! As in instructions!!

JC Industry (author)2013-09-28

Screw everyone cracking on you. Nice ballistic knife.

neo71665 (author)2013-09-23

Hope ya don't get caught with that, FBI watch lists don't just go away.

HeathSM (author)2013-07-25

I now how to make it its easy really

fancypants23 (author)2013-07-19

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

Silent-Mind (author)2013-07-08

It's not a 'trade secret' to tell us how to make it, it's an 'instructable.'

duct-tape_knex_ninja (author)2013-06-15

Instructions pleeeeeeez!!!

zork the destroyer (author)2013-05-26

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-chan (author)2013-04-23

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

It aint illegal, so I aint worried.

Kiteman (author)2013-04-11

In the UK, that would count as a "weapon", not a tool, and would probably fall under "concealed weapon" legislation as well.

spylock (author)Kiteman2013-04-12

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.

Johnhall44 (author)2013-03-28

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

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.

That's what I use...

7.62x54r, try it sometime. Its magical =P

You can even hunt planes with that ammo.

ringai (author)2013-03-14

Incorrect. Ballistic knives are most certainly illegal in the US:

egwillfriedel (author)2013-02-27

Cool. How heavy Is the knife assembly (not including the handle)?

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...

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.

Just because you don't post the instructions isn't going to keep a serial killer from killing somebody if they really want to. And besides there are much easier ways of hurting people.

True. I just needed a good excuse other than being to lazy too post it.

About This Instructable




Bio: Just an ordinary guy making knives in his backyard.
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