The DOT pistol is a pistol I built fairly recently, and have made two of since it's awesome. I'm sorry I couldn't give better instructions as it was done somewhat lazily, but it's still buildable. I'm sure there may be quite a bit of questions, so ask away, and I might upload better instructions sometime.
The DOT Pistol Features:
Very good range (I haven't tested it, but it goes considerably far with one rubber band).
Comfortable Handle (But not as comfortable as the D2OP's in my opinion).
Removable hatch DOT system
Hand modeling credit goes to my friend. HE SHALL REMAIN ANONYMOUS!!! :3