Okay I was just over at the test forum and I was able to post my photo. Anyway I just got back my M28 with 4" bl. I had the 6" done a few weeks ago. It's called Polykote. The guns are Parkarized and then a polymer coat is applied. Very sturdy finish. I plan on having the other M28 re-blued. Just to be traditional. I own a M27 which I plan on leaving alone, but my 28's are shooters.