Articles, Blog

Powerful Handheld Rocket Rifle (AK-47 style)

These cheap paper rockets from a different
project will cruse over 300 feet, if you’ve got the right equipment to get them airborne.
In this project you’ll learn how to convert common sprinkler parts into a powerful and
portable hand-held rocket launcher. For this project, I based my design on the
style of an AK-47 assault rifle. I rounded up these PVC sprinkler parts for about $45
at a local hardware store. To get started, we’ll need to measure some 9″ lengths of 2″
PVC pipe, and when those are cut, they connect to these reducing adaptors. Together, these
will act as the pressure chambers that power the rocket launch. I’m placing the parts
on my worktable in the basic form of the finished rifle, so I can measure custom lengths of
1″ pipe for the body. I’m happy with the look, so let’s cut a 2′ length of 1/2″ pipe for
the barrel, and commit to this design by making it permanent. Purple primer will go on first
to clean the connections, and when they’re dry, it’s time to add the PVC cement. When
we make our connections, it’s important to use glue on both components, and twist them
together to make sure we get a great seal. There’s gonna be a lot of pressure in these
chambers, and we don’t wanna take any chances with a bad connection. Alright, the frame
is complete, and now we can focus on adding a pneumatic coupler to this cap. This will
allow us to pressurize our system with an air compressor. The pneumatic coupling is
added by drilling a hole in the top of cap and tapping the hole to form threads that
will secure the adaptor air tight. Next, we can drill a hole in the other cap just big
enough for a momentary switch. I’ll shape the bottom with my belt sander and a rotary
tool so that this trigger cap will fit snug on the handle. I’m getting this ready for
painting, so I’ll need to clean off the stickers with some adhesive remover, and tape over
the parts that I don’t want exposed. We still need to attach the trigger before we can paint,
and we also need to attach some doorbell wire as well as this poly tubing. These together
will join the electrical system to the trigger switch in the cap. To connect them up, we’ll
have to cut a hole just bigger than the tube, and we’re at it, let’s drill a hole in the
center of this plug as well because we’re gonna need that later. Next let’s strip
our doorbell wire so we can connect each wire to the switch. When those are in place, and
tightened, we can secure the switch on the cap, then pull the wires through the bottom
hole. We need to get these wires through the protective tubing and I found that could be
done by sucking a string through the tube first, then attaching the wires to the string.
This way, they pull through the tube easily. Alright, the tube is in place, and we can
add some hot glue to help keep it there, and now we’re ready to attach the trigger to the
frame. Hot glue goes on the back, and it presses into place nicely. I’ll add just a little
more glue to fill in the gaps. Ok, it’s time for a paint job, and I think it will be fun
to use a variety of camouflage paints, so I’ll hang this up and start attacking it with
4 different colors. I’m letting each layer dry before adding the next color, and just
spraying in random patterns for effect. I’ll add a coat of finish, and when it’s dry I
think it looks pretty good. The masking tape we used to cover the trigger switch and pneumatic
coupling can all be removed, and then thread tape can be added to each of the threaded
connector nipples. We need to make sure these are screwed back on fairly tightly because
we don’t want any air to leak. Let’s add the in-line sprinkler valve next and then screw
the barrel onto that. The valve wires get pulled through the 90 degree joint, and the
elbow presses nicely onto the solenoid casing. Now it’s time to rig up the electrical system.
The ends of each wire need to be sniped to size and stripped to expose the bare copper
wire. The other side is made ready by pushing the poly tube through the hole in the end
plug that we made earlier. Next, we need to wire a 9 volt snap connector in series with
the valve and the switch, and that can be done by twisting the ends together. I used
electrical tape to cover the connections and it ends up looking like this. Now we can snap
our battery in place, and add hot glue to hold the tubing inside the plug. When that’s
cooled, the wires and battery tuck very comfortably up into the casing to shield the battery from
the elements. The system is finished! At this point you should have your very own “AK-47
style” compressed air rocket launcher. I’m really happy with the way it looks and handles.
I’ve even made barrel adaptors for shooting paintballs and water balloons, and a valve
stem adaptor for hooking up a bike pump for anyone who doesn’t have an air compressor.
A little pose for the camera, and I’m ready to test out one of my 5 cent high pressure
paper rockets. Look for the video on how to build those. Alright, all my neighbors are
at work, and the streets are clear so it’s time to fire. Woah, where did it go? I actually
lost sight of it, but after a few minutes of searching, my little boy helped me find
it way down the street almost 300 feet away. That’s nearly the length of a football field!
And it’s still in perfect condition, so let’s shoot it again! I’m firing these at 135PSI,
and they’re out of sight every time. Well this has far surpassed my expectations. Not
only can it launch rockets completely out of sight, but it’s portable, customizable,
and can be modified to launch paintballs and water balloons hundreds of feet! That’s it
for now. If you liked this project, perhaps you’ll like some of my others. Check them
out at

100 thoughts on “Powerful Handheld Rocket Rifle (AK-47 style)

  1. 3756238573123556783676376176357978025905808477777777777777777777777777777777777777777777777777777723909857823495027348574837254872590707234580234709345723890754389590728439527348959027485897589729u45972894297590758907534872589375837583476735723752375475237628578468634646448936398581965017488947835737704701789013747385684665464785701640§6§06§006043745+§84´83537534790743+53+75940377893758974895789477354857934875348957834574875845784578475843758478357487387534758734589347902750234758274897589729856927342897034897589342709235723537857234758074357489237725892347895789025789578927524888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888////////–/—————————————————————-* *-******************************************************************************************************************************************************************68777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777

  2. Fire it into someone's balls at 793038337203639282783282738382378338383382282272517292020292828373723637291727289278273828372229 psi 😈

  3. Wish there was more information or details as to what he's using and why. This way we can build these things for ourselves. I'm more interested in the other things he's done than this one. But I'd be happy to pay for plans and item lists.

  4. I Challange You King Of Random, To Do A Powerful Rifle Using Only A4 Papers, Tape and Strings, Up To The Challange?

    Distance Requires to be: 7m

    Main objective of this challenge: for me and those who don't have all these impressive and amazing stuff to see how The Best can do a powerful Rifle or something that can shoot far using only Paper…
    Feel free not to accept
    Best Luck (•ᴗ•)/ ᴛʀᴜʟʏ ɪᴍᴘʀᴇssᴇᴅ ʙʏ ʏᴏᴜʀ ᴇᴘɪᴄ ɪɴᴠᴇɴᴛɪᴏɴs ᴀɴᴅ ᴛʀɪᴄᴋs! ᴏᴜᴛsᴛᴀɴᴅɪɴɢ ᴊᴏʙ!

  5. The rocket flew to freedom through Three hundred yards of sweat making air compressed thrills that I could ever imagine[or maybe it was something else ].Three hundred yards that 's the length of three football fields.

  6. I miss this type of content, more DIY stuff, and I miss you man <3 your story was legendary and I'll always come back to it, good luck in the next life

Leave a Reply

Your email address will not be published. Required fields are marked *