Was at the gun show on Saturday and was looking every Smith & Wesson 4" to 6" barreled revolver I could find there. So this vendor I talk to often had this 686 6" barrel for a 1000.00 and I laughed and said that's kinda high isn't it? He said no that's a 686, then it hit me, it was supposed to be a stainless finish and it wasn't, it was black. He then explained he called S&W to get the serial numbers run and found out it was a short production run for Accu-Sport arms called the "black magic", with a "M" in the serial number on the box to signify it's special coating.