I edited the recoil, and draw animations to give it a more powerful feel, and moved the origins forward a bit. Plus, I added xlongwayhome's excellent firing sounds. Have fun, and feel free to hack these animations on other models. ;)
Sorry about the render, I just wanted to get this released. If you'd like to make one, let me know.
MAJOR UPDATE 7/17/08
I edit the animations a bit more, hopefully they are timed right now. I also removed all dead frames too.