Mechanical Pencil Gun

An easy to make office weapon capable of firing anything that will fit in the barrel.

Step 1 Gather Materials

All you need is a BIC mechanical pencil and two rubber bands. Pencils by BIC are perfectly suited to this (I haven't tried any other models yet). You also need a knife/razor to make an incision later.

Comments

[jaylan77]

try using choped up secsions of a pencil?

[fastcalvin]

i love this thank you very much

[samaside]

Anyone know what size BBs work the best?

[knexdestroyer]

6mm .12 g bb's would work the best

[NE patsrock]

regular airsoft bebes

[Squibb]

Next time, you should try to make a semi-automatic mechanical pencil gun. Just drill a hole in the barrel of one pencil and then stick the other pencil in the hole. Fill it with BBs or whatever you want that will fire.

[oa-j]

just use the pen ink cartridges... works fine but curves alot.....use close range

[cwestrum]

you can put staples or needles in the wax too.

[cwestrum]

I like to use a little bit of wax candle or cheese wax. It sticks to the black end and you can stuff it so it compresses the air and hits harder.

[sszeprocks]

dude, how much fps is this thing

[cookie38]

6000000 mile per millisecound

[Look Over There]

awesome except i had to use a knife to cut the edge off and it took 1+ hour

[sportguru]

Hahaha. I used one of these and got expelled for it..

[awesomekitteh]

yeah sure ya did

[Air_Assassin]

Lol when I use it in class I shoot my friends and my teacher knows I haz it but she doesnt CARE lollolololollololololololollololol

[beehard44]

o yeah, if you use a skewer instead of the mechanical pencil insides, you will see that the whole thing goes in the barrel for a split second. It cuts the rubber band eventually.

[HiddenBlade1234]

it cool im using small screws that i had from other projects

[kooljoe45]

best damn launcher EVER! I put in a straight paper clip, pulled it back, BAM! now there's a hole in my wall, AWESOME!

[Air_Assassin]

DAM thats powerful

[Air_Assassin]

dam thats awesome

[aarrnnoo]

simple but cool :)

[meatygut]

i did but it doesn't hurt or anything, do u have to use bb's? cuz im using things like pebblez, dog kibbles and bird food, but nothing work

[letnetik]

I used small cut up skewers cut off the grayish part that sticks out, loaded the pieces into the grayish part of the pencil works perfectly!

[175airsoft]

Use little knex pieces i made one and that works best Once i was in class and i accidently shot my teacher but no one admitted it .

[cookie38]

Epic dude i wont forget u .u r my idol will you be my friend

[dirtnap]

Wow man. Dont use bb's. What you do is get a piece of paper and wad it up to the size that fits your barrel then staple one end of it, and make the staple pointy so it can hit the victim and go into em'.

[hoogilyboogily]

hey wat r bb's?

[jbyrd117]

butterfinger bb's

[runtherd99]

Ball Bearings

[Air_Assassin]

No they are ball bullets

[Air_Assassin]

No they are ball bullets

[DacrazyDude]

ball bearings are too heavy to fire out of a pencil gun. i think bbs refers to the kind that are shot out of an airsoft gun

[Dog Tennis]

Just a little tip, I personally find it better to have another rubber band and wrap it around the inside shaft right next to the eraser, i have the problem of the shaft getting stuck whenever I fire, its keeps it from jamming up, and its quieter too, so there, if that makes any sense ^^

[_______________]

If u really want it to hurt. Put a straight paper clip in the inner tube. One time I shot the cilp straight up and when the clip landed , it was stuck on the floor pointing up.

[Apple_4_life]

5 stars man! this is awesome!

[football4fun]

Nice led pencil gun!

[NANOdude]

This Was Really FUN to make. I used it and i was able to hit 3 coke cans w/ 2 nails

[pokerstud001]

It makes it a lot easier to keep the rubber band on if you duct tape it to the barrel, then duct tape the other end to the eraser.

[maxwelljets]

 if you use a "pencil top" eraser it keeps the eraser shaft from chipping away at the barrel.

[Robot Lover]

this is good but instead of putting the rubber band lower towards the bottom of the pencil, hokk on the clip and then loop it around a few times.