Pneumatic Sniper Rifle

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Introduction: Pneumatic Sniper Rifle

This is a a great begginer project for someone who wants to build a pneumatic potato gun. pricing is reasonable, being around $50- $60. took me only an hour to build. The only thing that i would change is the handle, it shold be bigger to hold more air. I havnt found the range yet because I am not sure how much pressure it will take. I dont want pieces of pvc stuck in myself!


read final page for legal.

ps. sorry about photos, my camera is broken so I have to use a phone.

Step 1: Parts

WARNING: MAKE SURE ALL PARTS ARE PVC PRESSURE FITTINGS

-3 of 25mm 90degree elbow
-25MM TEE
-25MM PIPE
-15mm pipe
-2 of 25MM vavle socket
-25mm h/style/w/o valve solenoid
-20 by15mm reducing co
-tape (optional, added for strength)
-clear tube ( will jam into trigger without leaks
-air trigger
-schrader valve (car tyre valve)
- a bit of brass (u will need to thread this and drill through the middle) see pictures.
-pvc glue

Step 2: Construction

MEASURE! then cut
Glue the parts together, prime if u think necessary
making sure everything is straight becuase pvc glue dries extremely fast!
Dont forget to put in the schrader valve as well.
Now tape up the tubes, i used a roll of electrical tape.


Step 3: A Closer Look

The sprinkler valve was taken apart
-a hole was drilled in the top, on an angle
-the hole was threaded

The piece of brass was cut down
- a hole was drilled through the middle
- one end was tappered using a file
- the other end was threaded using a TAP AND DIE SET
- the brass was then screwed into the valve with plumbers tape to stop leaks.

Step 4: Wait

You may be excited to see if ur toy works. but please wait the full 24 hours for the glue to set.

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. i think u understand the waiting part

Now u can test out ur toy. slowly pressurize. Im not too sure how much these pipes will hold. I have only tried mine upto 50psi but I am sure it would go further. dont over-do it though. pvc shatters and sends bits flying everywhere.

fire what u like, potato, marshmallows, or um... stell balls. just remember though, this is now considered a weapon and is illegal to own or use. I will not be held responsible for any damage, injury or death. if u make this project, it is your own responsibility.

so what will u do now, why not modify it? change the barrel, chamber, trigger, change it to fire water balloons... the list goes on. see what u can come up with.

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    72 Discussions

    0
    tigerboy
    tigerboy

    12 years ago on Step 4

    what about modified co2 cartridges??????

    0
    dietpoop
    dietpoop

    Reply 10 years ago on Step 4

    that would be sweet, u could use a co2 inflater, which r used 2 fully pressurise tyres in seconds, wich would be epic

    0
    airgun_expert
    airgun_expert

    Reply 10 years ago on Step 4

    it would be awesome. but i recommend using steel as a material instead for co2 cartridges, depending on the size. they hold appox. 900 psi in those little tanks.

    0
    struckbyanarrow
    struckbyanarrow

    Reply 10 years ago on Introduction

    you get   a check valve with a pressure valve and 125 psi regulator and your set to use it with pvc.

    0
    shatterfrag
    shatterfrag

    11 years ago on Step 1

    do you have the smaller end of the blowgun capped so the air isnt lost? i need to know because i am building one of these for a physics project.

    0
    Nerfgenius
    Nerfgenius

    11 years ago on Introduction

    A good way to make a air tank is with a coupler, much bigger PVC, a cap that fits the PVC and super glue to hold it all together.

    0
    samdaman
    samdaman

    11 years ago on Step 1

    do you need the brass piece cos i don't understand. i've never made anything like this before

    0
    The Expert Noob

    some modifications i did to mine: quick disconnect with CO2 tank with a regulator set at 80psi. the trigger was tapped directly into the top and the sprinkler valve was turned 180 degrees from this one. a better stock (more volume of air) I used 1", perfect for bouncy balls. also I have a blow off on the gun itsself on the air chamber incase of any kind of CO2 bursts into the chamber (150psi) but the trigger or sprinkler valve would fail before this PSI is reached. as soon as its repaired (from a valve fail at 120 PSI, trigger blew out) I may have a picture of it up.

    0
    stick-69
    stick-69

    Reply 11 years ago on Introduction

    LOL nice, bouncy ball gun. I found that mine will shoot those small precision screwdrivers if i tape the ends for a better seal, I wouldnt recomend it though.

    0
    Kings of Leon
    Kings of Leon

    12 years ago on Introduction

    Does it matter that the chamber is so small? Would increasing the chamber size increase performance?

    0
    qballcat
    qballcat

    Reply 11 years ago on Introduction

    yes and no, if you decrease the size of the barrel it will go much faster and farther BUT it will shoot smaller projectiles, the oppisite is true for bigger barrels

    0
    zach12
    zach12

    12 years ago on Step 2

    and where is the schrader vavle?

    0
    Johnthan
    Johnthan

    Reply 11 years ago on Step 2

    I would guess the black peace with the hose coming out of it.

    0
    Loveofchaos
    Loveofchaos

    Reply 11 years ago on Introduction

    Sorry buddy, schrader valve is the valve used to full the pressure chamber with air, generally people get them from old bike inner-tubes

    0
    zimmemic25
    zimmemic25

    11 years ago on Introduction

    these pics are better than mine and i use a canon powershot A 60 (i think).

    and if you like shooting potatoes, try tomatos! they are muuuuuuuuch more fun...

    0
    rocksalt2342
    rocksalt2342

    Reply 12 years ago on Introduction

    anything that shoots a projectile (even spitwad straws) is illegal. but who cares?