Picture of Airsoft Anti-Aircraft Style Coaxial PVC Launcher
Disclaimer: The author is not responsible for any injuries related to or having to do with this device. The author is also not responsible for any property damage caused by this device. Use at your own risk!

Warning: It is specifically against manufacturer recommendations to use PVC to contain pressurized air. These instructions are to be used at your own risk.

Welcome to my attempt at building an anti-aircraft style coaxial PVC launcher. This launcher will be purposed for use in airsoft/military simulation games. The base cannon design was found on another site and I see that the creator also has an instructable posted here. Please feel free to follow or reference his instructions just be aware of my modifications to the firing and filling mechanisms.

(2) 3 inch slip coupling
(1) 3 inch x 2 inch reducer
(1) 2 inch slip x 1 inch female threaded reducer
(1) 3 inch x 2 inch flush reducer
(1) 3 inch slip to male thread adapter
(1) 3 inch slip to female thread adapter
(1) 3 foot section of 3 inch schedule 40 PVC piping
(1) 3 foot section of 2 inch schedule 40 PVC piping
(1) 3 foot section of 1.5 inch schedule 40 PVC piping
(1) 3 inch tank to bowl washer (for toilet)
(2) 3 inch steel gas vent T caps
(1) Rainbird 1 inch in-line sprinkler valve
(1) 3/8 inch hose barb to 1/4 inch threaded brass fitting
(2) 1/4 90 degree male to female brass fitting
(2) 1/4 hose barb to 1/4 threaded adapter brass fitting
(1) 1/4 inch brass schrader valve
(1) 160 PSI gauge with 1/4 inch bottom fitting
(3) 1 inch steel self-tapping screws
(1) Sheet of rubber
(2) Small screws
(1) 1.5 Feet of 6x2 cedar
(1) Airgun
(1) ~3 Feet of 1/4 air hose pressure rated to at least 200psi
(2) Small hose clamps for the air hose
(4) 5 inch pipe bands
(1) 4 inch pipe band
(*) Plastic bonding spray paint
(*) Teflon thread tape
(*) Epoxy
(*) PVC Primer/Solvent
(*) PVC Cement
(*) Thread Paste w/ TFE

(1) Small hinge
(1) Small clasp
(*) Decals
(*) Acrylic paint: Green, Yellow, Red

Bench Grinder
Hack saw
Masking or painters tape
Cordless drill
Various drill bits
Screw drivers
Strap wrenches
Jig saw
Miter saw
Wood clamps


I can't wait to build one of these and take it to the paintball field. I'd shoot a shotgun load of paintballs to take out as many people as possible. We won't be losing another game!

now that's an awesome launcher!

wulfst1 year ago

This is absolutely brilliant, and I appreciate you posting an instructable on this. I have been wanting to have an RPG available for airsoft games, and I think this is just the one I want. Thanks!

Masher0071 year ago

This is not spam, but a warning. PVC will fail suddenly after a while. This was band member that hurt badly by a T-Shirt launcher explosion.

See the pictures and never use PVC to hold air, Please.


hsimo24 (author)  Masher0071 year ago
There are lots of factors that could cause PVC to fail. Anyone using PVC in such a manner as depicted in this instructable should do research beforehand and assume all risk.
D3LUSI0NAL2 years ago
Link for the air gun?
hsimo24 (author)  D3LUSI0NAL2 years ago
Don't have one. I just picked up the air gun at a local discount tool store.
Noah Tingey2 years ago
I love the stark industries label!
zekezane2 years ago
How much did you spend on this?
hsimo24 (author)  zekezane2 years ago
Really really rough estimate: $200ish.
Gamaguy3652 years ago
What is the rough cost of building this? I know depending on store, location, and brand, the final price may vary. I think the Anti-Air Launcher would be pretty neat to add to my arsenal of different launchers ^__^
hsimo24 (author)  Gamaguy3652 years ago
My guesstimate would be so rough I'm not sure its of any value. I'd say in the neighborhood of $200.
okoshima2 years ago
ideal backup for running recon... pistol? nah rpg baby
hehehe like the Stark logo
heh same
ilpug2 years ago
A very nice build, except to use this in Airsoft would be pretty dangerous.
hsimo24 (author)  ilpug2 years ago
Well we will obviously keep the PSI within reason enough for it to remain safe. I may add a pressure safety valve so it can't be pressurized over a certain point.