Littlerock, California. I am 52, twice divorced, with 2 degrees in Engineering and 1 in Psychology. 5 kids, and not making any more, thank you very much..... First patent is number 6,079,138 for folding delay blowback operating system for automatic hand held weaponry. Permits a 24 inch barrel in a 28 inch rifle. By the way, it is ambidexterous! with a straight down ejection path.