In the US, you don't need a 'gun license', because it doesn't exist. You need a 200$ tax stamp, and a Class III/II Weapons License to buy a silencer.

Would a shorter barrel increase or decrease power? It would provide less friction on the ammo, but also provide less length for the pressure to push the ammo, so which would prevail?

If you put a t-angle on the barrel with a length of pipe and add a locking tire chuck with an air-compressor...could you make this semi auto? I am going to make this (my 4th airgun, 3 are ball valvers :D)
p.s. put marbles in the t-angle?

I gotta say that building this as only a 12 year old is quite impressive. Im only 16 and I am on an FRC robotics team (electrical subteam co-leader!) so i work with these kinds of things a lot. nevertheless, i love the fact that younger kids are getting into this kind of stuff. Kudos to u, good sir.

Nope, no license needed. At least in the US, I remember just walking into big 5 when I was twelve and buying a high power rifle scope, they didn't say a thing except "Thanks come again".

hey does it have to be a car tube valve or can it be a normal push bike tube valve

why is a sprinkerler valve better? what is the advantage?

I watched that video.

Do I bloody like apples? That pained me.

...on a more serious note, excellent build.

Excuse can somebody plzz tell me wat does "over under bit" mean on one of the pvc pipes when u hover your mouse over it???????!!!!!!!.............PLEASE REPLY I WANNA SHOOOT MANY MANY SQUIRELS

NG audio portal rocks!

i'm feeling stupid
i don't know if im stoopid
but how many valve does it used??
can u make a video for making them

does the sprinler valve let all the preasure out at once or is it controllable ?

GUYS I GOT A DOUBT

ABOUT HOW WE LOAD OUR AMMO..................


CAN ANY1 CLARIFY ME

Can i use marbles as my ammo? :DD

Do you reckon u could do some small game hunting with this gun like rabbits?

Not everywhere! Murder is illegal...lol!

Hey can anyone please give me a hand, i have made my gun but even at 85 psi the diaphram wont pop up and let all the pressure through and i dunno y. its not the spring cos i took it out and it made no difference, u said u used 40 psi maybe the rubber is stiffer or the whole in the diaphram is too big just wanna get opinions.

 Does anyone know of a reliable way/source of cheap ammunition for a 1 inch barrel? other than what was mentioned above..

Not in Australia mate, im an aussie with a firearm licence and i know u dont need one to buy a scope, however i am quite sure that silencers are illeagal in australia, especially concidering that they have banned hand guns. i am going to make this only a bit more snazzy. Got a scope that i bout ages ago for an air rifle, 12x zoom and also a bolt action so that the ammo doesnt have to be barrel fed. Marbles will be the ammo. Just with the modding of the sprinkler valve i have found one (also know i found as a solenoid valve but even your local plumbing expert may not know what ur on about) the one i have has a plasic diaphram guide pole and now solenoid or flow control (less work) is the best option just drilling next to it and tapping the hole and inserting the adapter? also with the hose that goes to the trigger anything in particular (pressure rated)?

i made one and nuts and bolts are cool ammo. but ferrite core's with silicon in the middle are fun as hell!!!

I don't know exactly how I'm gonna do it, but once I build an exact replica of the Barret M82A3 .50 caliber sniper I will find a way to fit this gun (with some slight mods) into the case.

Aussies rule =D

Not many of us on here blugy =]

i made it and it looks awesome!!!!!! excepted im making mine for paintballs

Mine does like the same stuff except from like 150 feet away

im new to this so i wanted to know how to pump the air in the gun. Is it through the air tube from the tire? Any help is greatly appreciated.

*cough*blowgundarts*cough*

Did you realy think we nead more weapons to play with???

Realmente pensas que necesitamos mas armas con las que jugar???
a Qué?

desde SudAmerica.

F-

I like your design's key features
-long accurate barrel
-large volume of air

I had one but the air tank exploded so I am looking for a design with allot air volume so I wont need as high of a PSI.

Great Job

How much will this all cost?

That's pretty cool, but a smooth bore barrel is not something a sniper would use... It'd be awesome if you could rifle it... Does it recoil at all? I owned a spring pellet gun, it recoiled quite a bit. I haven't seen any recoil at all when pneumatics are shot. Can you feel anything when you fire?

if you were to make an auto you could take a slightly larger pipe and slide over to make a bolt then take the gas tube of of a semi- auto rifle and drill out a hole in the barrel and attach that, and finally add a feeder, so wouldnt be to hard

No offense, but a ball valve it a pretty good valve. It can be be pretty advanced with a "spring trigger" set up. Also, a piston valve with a ball valve is still much more difficult then a sprinkler valve, its also stronger. Ball valves don't make a gun a "newb" gun, as it is a very basic, but durable valve. It can also be used as a safety if your using a different valve for the trigger. I'd have to say the most advanced trigger would be either a solenoid valve or any homemade valve (or a QEV)

Rofl, nice gun btw. Can't wait to start on my shotgun :D

geez your only 12 and your making this.... TANK! :D

you could use the scope from a 22rifle

I just did the math and the price totals out to be around $100.

Depends where.

want me to post vid of me shooting a sinker nearly all the way through a banana using a mini combustion gun?

hey nice work man can you turn this thing into like a super powered watergun? and where can i get all of the parts in NZ

have you tried a tazer glove need help

I love how strong the recoil is with water. I also love taping the barrel closed with duct or packing tape, it sounds like a gunshot!!!

please write an instructables on the home made sniper rifle

when you shot the apple, i thought, William Tell!

So the sprinkler valve is the actual main vale that releases the air into the barrel? and without mod it would be triggered by current? Is it really necessary to modify it then or could you use is unmodified and trigger it with a current? Or does the mod involve something else then just changing the way that u trigger it? Reply would be much appreciated

could i use a bigger chamber and a smaller valve? would that increase the velocity? accuracy? just wonderin..... ive got all the valves and connectors but theyre bigger and smaller than yours. none are the same size as yours..

i dont completely understand how filling the chamber with air and then pressing the air gun makes it fire?

ok, but u think i can use a mettalic valve? and mettalic pipe instead of PVC?

how much psi do u use? and can i use the ball-valve at step 5 as trigger?

Can I put bbs in this, or anything els that can kill a frog? That shotgun shell looks sweet. Thanks, AM

And do you have to pump this up before a shot? So it would go: pump, shoot, pump shoot. Sounds kinda slow.

wat is your ammo? basicaly wat are you using!!

how much did the valve cost

Add some videos of it working

you could make it semi auto by putting a Co2 tank attachment on the air chamber part then by putting a bolt onto the barrel.... if you could try it id like to see it... nice gun tho

Where does it leak? Through the connection (Where it connectes to the pipe) or the end (Where the air is supposed to come out when you press it down) If its leaking through the connection put Epoxy there, or more teflon tape. Make sure its fully screwed down. If its leaking through the end u better get a new one.

what do you do if you overload it with air and it all breaks down

Thia looks like it would be perfect for shooting glowsticks, which may I add is the perfect night time ammo

to make loading the spuds easyier you could file down the end of the gun so it forms a point.... just an idea to make things easyier

just in case you don't already know in Australia in most states (not sure about tassie) pneumatic cannons are classified as class A fire arms, and combustion's as class E. If you are found with a class A firearm the police will dismantle it and give you back the pieces to dispose of, caught a second time and you face a hefty fine. If you are caught with a Combustion or Hybrid cannon classified as class E you will be charged the same as if you had an RPG or Machine gun... sorry to be a spoil sport but building a combustion or Hybrid is just not worth it. I know this is a pneumatic but everyone should be careful because the Australian firearm laws are ****ed up,

here it is explained much more thoroughly =)
spudfiles australian laws

sorry for the long message =(

what psi should be attained?

The video was awesome. I am planing on building a similar cannon, but with a steel stock

ok nice gun but the chamber is a major air restriction you chould block off some of the path ways with epoxy nice beginners gun i am on to more advanced things but nice job u shuld give it a paint job

anybody ever get screwed over by a drunk?

dude where do u get ur sprinkler valve from???

What the heck does 'go sneeze a pillow case' mean? Only a crazy person would think of that.

GO SNEEZE A PILLOWCASE???????

whats with the shift key usb?

I have a question, When I test my sniper, how loud is it at 60 psi? I know how loud it is at 30, but I haven't gone higher for fear of too loud of a noise without ear protection.

I just made one of these and it is awesome, I shot a Co2 cylinder through a sheet of thin steel. I was thinking if you could make one with a two chambers, one large one to act as a reservoir for air pressure, this chamber is connected to the other smaller chamber by a ball valve. You fill up the big one with the valve open then close it and then shoot. Open the valve again to fill the small chamber, close it and shoot again etc. Maybe if you do this you could get a couple shots of without going back to the compressor.

can I use 3/4 inch wide pvc pipe for the gun? It will be slightly bigger but can it still work?

Can I use vinyl tubing for the hose connecting for the valve?

2 thing that come to mind......1 a shotgun is a gun. and the cartridge it shoots isn't a shotgun, but a shotshell.shell equaling a shell casing. and two, that wood is so fragile I could kick through it when I waz 6.

Could I use smaller pvc for the barrel to make the ait more compressed and make the gun more powerful? Nice instructable.

Oh, lol. I must really suck at math or something... Sorry.

good aiming when you were shooting the apples!!!!NEAT GUN!!!!

Can you also add a big pvc container for the air?

is there a way to have semi auto on this gun besides pumping?

how do you air it up?

this is a nice idea u have

how mutch would all this cost?

Can you help me? I bought a different valve, it had a hole in the center of the diaphram. When I pumped the gun, the air pressurized, but when I pressed the trigger, the air came out the blowgun trigger instead of the barrel. So I plugged the diaphram, and now the air comes out the barrel, but the trigger doesn't stop the air from coming out. DOes your diaphram have a hole in it? Does it need to be there? I would like and answer ASAP. Thanks.

asome ima build this

yeh everything is available at bunnings, except chocolate and ice cream :) tire valves are gettable from old bike tubes

i work @ bunnings western Australia and all the material is available.

at my place dont have that kind of pvc cement or prima, can i use pvc glue? or what else i can use other than pve cement or prima?

Personally, my favorite air powered rifle is an old paintball gun (36 cal) hooked up to a scuba tank and loaded with blowdarts (also 36 cal) and a 1 piece 36 inch blowgun barrel w/quivers attached to the front of the PBG carcass. To load you pop off the barrel, pop a dart in, pop back in, aim and blow. Flies for about 300 feet. About 100 shots from a scuba tank.

that thing is nice!! i tried to build one out of thin 1/2 inch copper pipe... didn't go very well. I like your design and i'm going to try it. 4.5 stars!

i had one like his only with a 2 leter bottle .... dont use 2 leter bottles it blew up on me and i had a welt the size of a 2 leter bottle and it knocked the wind outta me

Good work keep it up

do you like mine ? Copper cannon

yep real lucky you didnt have one come back at you.if you have to get that close just whack the sod with the barrel that hurts.next make it a rocket launcher with a barrel big enough for a film cannister.a teaspoon of bicarb and ballbearing seal halfway with bee wax.fill with vinegar and put lid on.make sure the lid faces the front.fire it and on impact the ballbearing travels thru the wax and a chemical reaction.BOOM add flights if you want accuracy.make a mortar if you want a lob shot.have fun its safer than firing batteries and great team game when food color is added.

Guys, i changed the scope to a finderscope because the binoculars broke =(
The scope mount is waay different as well. Its got two little stands.
A finderscope is kinda like a mini-telescope and you use it to "find" things that you want to look at. Once you "find"it (gee i wonder why its called a finderscope) you look through the main telescope.

honestley you shouldn't be standing that close to the target pump it up to 80 psi and stand back a ways should do the sam dammage.

ummm... could you please give me the measurements in inches? my grampa is stubborn and won't buy them unless it's in inches..... PLEASE?!?!?

How do you Load this? just slide down pipe or what?

This is awesome. How much did all the materials cost? Also, the first thing I ever built was a flamethrower.

how did u make the shotgun shells

in the video you said 6 shots, what do you mean?, sprinkler valves release all pressure at once, right? P.S. today is my birthday!!!!!!!!!!!!! i was born on a day with fire works, maybe that's why i like pyro...

thats mean, telling people to shoot a barrel full of water standing up straight. the recoil with the barrel full of water is pretty strong and can knock you off your feet

hey I have a idea I have a old pressure washer wand and I was thinking oh my gosh that would be the best spud cannon on earth but would it really work as well and as safely with air as with water and if so how do you hook it up to a air compressor because all my fittings are either too large or too small thanks, fidgety

really nice gun,simple and effective. thanks for metric figures, inches are annoying. im thinking of making a gun similar to this that fires .177 lead pellets and is powered by CO2 canister. hopefully it wont explode in my face. if i ever get off my arse i'll post my efforts.

this is awesome

looks like a covenant carbine, just paint it purple lol

actually, over-under means double barrel with one barrel on top and one on the bottom

Quite a sleek gun you've got there, and a very nice description of the build process, but I'm curious as to whether or not you've painted it yet.

wow ur 1st instruable and ur 12 making guns lol awsom thanks for doing it in mm not inchs

lol i made one with my dad and we have been shootign it threw cardboard and cokecans it absoloutly destroys em. i have PN 12 asweel and i pump mine to the 90-100 psi range good gun thx little man. =]

cooooooool!!!!!!!!!!!!!!!!!!!!! but wat duz it shoot?

i have been looking for this all over the comments and instructible and cannot find an answer. what is the maximum psi or at least suggested psi on this gun? i know on the video you said 40 but that seems sort of low, is that really what you got all those shots off on?

This gun is really sweet and i realize how much power it has but you should have shot at longer ranges in the video if you want to show its use as a "sniper" rifle. Cool music too.

wow! nice im 14 and i still strugle to get how it works thx kid i'll have an atempt to make one =)

after i made this and showed my dad how powerful it was he said that once schools out i can use it to shoot @ some squirrels and birds during the summer when they try to eat stuff from his garden. if i can show him the body then i get $5 each lol...but later he said i might have to end up payign for the potatos and hair spray =(

hey thanks for posting this instructable its great but i have a suggestion for the scope. On the "scope" "binocular half" you could try to draw a crosshair on the lens with a sharpie for a better aim.

omg copied my idea!!!! i told u about this plan!!!! and now u get all the credit!!! lol!!!

Hey, pretty cool! Thatt's very nice. But, how you do your trigger system ? It's just make a hole on the sprinkler valve and connect to the blowgun?? How it works? When you pull the trigger, how the valve release the air?