10 round side-loading mag
Vertical pin blocker (for firing pin)
Step one has been completed, Feel free to comment on that. I make it with mlcad, but I havn't gotten the povray conversions to work, so if anyone else want to give is a whack, let me know.
Has pretty good instruction videos, but he doesn't mention me on the site. The license I released the gun under require attribution, so yell at him to give me some credit or I'm going to have him shut down. :) (blogger and webs.com both respect DMCA takedown notices)
Step 1: The Hopper
Some of the pictures are of a out-of-gun replica built for better visibility.