copper gun...

[ckman]

yeeoooo. This is my new gun I just built, it took me about 2 or three hours last night, after a home depot run. some specs

barrel: about 2 feet of 1/2 copper piping.
chamber: all together about 3 feet of 1/2 copper piping.
main valve: 3/4 inch qev.
pilot valve: 1/2 bv
fill valve: male quick connect with 1/4 inch ball valve.

This gun is pretty fun, it is able to go all the way through 1/4 ply wood with some nail darts, with the same darts i was able to make the nail head disappear into a tree with the other side sticking out the tree. the tree was about six inches thick. I still need to polish it up, and I am thinking about adding some sights.
I am operating at around 125 psi.
questions, comments, reactions...

[Big-E]

nice job. It should be able to handle more pressure, assuming the solder joints are strong.

Go with open sights, anything more is okerkill, imo.

Blowgun pilot would be a good addition.

Otherwise, a nice looking effort!

Oh, you need to brace the barrel to the chamber where your right hand is in that 3rd pic, cut a block of wood or something that will fit snugly in there, and strap it into place, it will help with accuracy a bit by bracing the barrel properly.

[Gun Freak]

Pilot volume is HUGE.
I would suggest using higher pressure too. Looks fun anyway.

[ckman]

alright... will do with the barrel brace. I know the pilot volume is enormous. I'm thinking about taking off the bv and piloting with a 1/4 qev blowgun setup.

[saefroch]

Extend your stock farther back and put the pilot valve directly behind the QEV where you currently have a tee. You could try using a blowgun, but the flow will be less and I've never found a blowgun to be more comfortable than a ball valve anyways.

Other than that, it looks pretty good. I like how the stock is also part of the chamber to take advantage of that extra volume. The stocks on my builds just direct the pilot jet away (mostly:roll:) from my body.

[ckman]

Thanks. It'll take me about a week to do the pilot valve stock extension but without a doubt I'll do it.