I dont know, my experience with KJW was less than satisfactory (when it comes to M9s).
My first KJ M9 had the habit of dropping the mag when cycled, seriously hurting my baby toe when firing in the basement. As for my 2nd, i found the accuracy sub par.
now my P14, it kicked ass, and I can wait for the single stack version to finaly be released.
Maybe you'll find someone else to help you. Maybe black mesa... THAT WAS A JOKE, ha ha, fat chance.
My Buy/Sell 1337ness rating