Pen Gun




Here is a really simple pen gun than is quite powerful and has a range of 20+ feet. I finnaly got around to making this instructable so I hope its alright

Step 1: What You Will Need.

you will need, Bic roundstick pen
2.sand paper
3.very small nail
4.lighter, candle or small drill bit(same size as nail) and drill
5.Plastic report clip.(peice of plastic that clips onto papers to hold them together but you can use about anything that can fit in the pen, blocks part of it off and can be cut to size)
6.Retractable Sharpie. (we need the spring from it)

Step 2: Ready the Pen

Remove tip and ink tube.

Step 3: Remove the Ink Tube

Remove the ink tube

Step 4: Sand the Tip.

sand the tip of the pen so it can slide out of the pen tube easily.

Step 5: Savage the Sharpie

Take apart the sharpie and remove the very large spring that fits perfectly in the pen tube.

Step 6: Ready the Spring

put a small piece of tape on the sping so it doesn't fly out when fired.

Step 7: Fire! Fire! Yea! Yea!

use a candle or lighter to heat up the nail.

Step 8: Make a Hole

make a hole through the pen tube and cap with the hot nail. (here is where you can also use a small drill bit.)

Step 9: Make Spacer

cut your material (peice of binder clip, plastic etc.) so it is to size so it leaves room for the tip and fully compressed spring

Step 10: Aim and Fire

to load the gun just put the spring in the pen and jam the tip on the sping and insert the nail to lock it in place. to fire just aim and pull the pin



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    24 Discussions


    5 years ago on Introduction

    It is good but only fires up to 20 feats check mine it fires up to 80 feats at


    10 years ago on Introduction

    do you put the spring in first or do you put the pencil in first

    I made on of these once... the only difference with mine is instead of shooting pens i just fired the ink tube. Also, i used a rubber band instead of the spring.

    1 reply

    true, but think about it, how are they advanced? i can make a hole with my hand. now something advanced, like a helicopter, now we may have problems making a heli with a hand.

    true, u have a point. but like i said, how are they advanced? things like boats and aircraft are advanced, holes are the building blocks for those kinds of things. holes themselves aren't advanced in any way. they've been around before our solar system was created.


    I hate that commercial too. "Introducing the new advanced quick release system" They drilled holes in pills, I chew them, big deal. If they put microchip cellular inhancing nanobots in the holes... Thats advanced! Also, I have a tri pen that when you twist the clicky thing it goes from pen to mechanical pencil to computer touchpad pen. I'm looking for a pen shooting instructable I can mod with this so that I can have three rounds in one "clip". ~Peace


    11 years ago on Step 1

    looks kinda complicated for a pen gun but it so cool when it shoots!


    12 years ago on Step 6

    :-) yea I know. I have a dog and cat who were shedding at the time and we hadnt vaccumed for a couple days.


    12 years ago on Introduction

    and.... do you put the yellow thing inside the pen and push it against the spring?

    1 reply