
The gun is built out of 1"PVC except the plunger and the barell and the plunger wich is made with 1/2 cpvc. It fires micro stefans to about 35 feet.
right now it's got a reely reely tiny spring because thats the only one that could fit over cpvc but i may get a new one fairly soon. now to the write up...
Materials-
-cpvc (plunger shaft)
-1" (pvc plunger tube)
-1" to 3/4 reducer
-1" pvc endcap
- 1/2 cpvc endcap
-duct tape
-o-rings
-spring(s)
To construct the plunger head first take your 1/2 endcap and wrap it in some of your duct tape until it is just a bit smaller than the inside of your 1" pvc. Once you have it nice and taped up slide your o rings on to it, and glue them in place. it should look kinda like this.

[note you must try to get your o-rings as straight as possible on your plunger head mine were a little messed up they are now fixed though]
next take your plunger head and put alittle hot glue in it and stick your 14" of cpvc into it then your plunger is completed.
it will look like this

Now to form the main body of the gun and the plunger tube...
take 5" of 3/4 pvc and cut it at an angle to were ever you are comfortable for your handle. Then epoxy/hot glue it on to your 12" of 1" pvc.
now the trigger it can be found here
://nerfhaven.com/forums/index.php?showtopic=6605&hl=clothespin
then once it is finished set it aside for a little while. Now take your trigger and set it on the plunger tube now were the pin touches the pvcmake a little mark. now take your drill and drill the hole through it make it just a little bigger than the pin. Then glue on your trigger. it should look kinda like this.

now to get the barrel working take your rass and glue it inside some 3/4 pvc. Now take your pvc and put it inside the 1 to 3/4 reducer. Done!

Now for the backstop for the spring.
take a 1" PVC endcap and drill a 5/8 holes in it so it is just big enough for your cpvc to fit through but not big enough for the spring to fall out.

Now assemble all of your parts and you got yourself a homemade.
To operate
-pull back trigger
-pull back plunger past the catch
-release trigger
-load gun
-aim
-pull back trigger then gun fires
rinse and repeat
i hope this hellped you a bit and if any of you use this send me