Karl, I just wanted to say that you did a stellar job on this project, and I'm excited to see the M4a1 version in person when it's done! If you don't mind, care if I post your project on our forums?
Thanks. I will update when I finish the M4A1 conversion, probably not for a few months though.
Post it up. I didn't post it there because I figured most of the BoB team isn't as into the Milsim stuff. But by all means, post it.