Looks good Stickerman.
Did you machine it on a Bridgeport, CNC Machine Center, or with basic hand tools? Regardless, you did a great job on it. Looks like the stock mag release is used, judging by how far back the mag sits in the mag well, and the feed ramp block in front of the chamber. Are you using a Colt ,or Olympic style upper? I work in a Machine shop, and have been toying with the idea of doing what you did. I already have an Olympic setup with the SOCOM block, and it just doesn't look as clean with all the crap sticking out of the magwell.
[beer]