3d Paintball Model

What I am looking for is a modeled paintball gun similar to this:
http://www.youtube.com/watch?v=MXGjquta_D4
I am not looking for the same detail as shown in this, or for animation. However, if modeling is done quick enough, I will also pay for animation if available. The external work (body frame, barrel, etc.) does not need to very detailed. What's most important is that the internal parts can be animated similarly to the video.

I need this project worked on and done ASAP, so please reply/contact w/ a price and anything else.