Hey everyone I was just wanted fellow M&P owners advice on a match grade barrel(s). I was looking at the KKM or the Bar-sto barrels. Can anyone help that has either one or the other or both for there M&P40 that have actual hands on or any expierece with either or? Thansk for the help everyone. This is for my profile picture M&P40. It's actually the Prone Series from a few years back but the Pro Series marks on the slide went away with the Cerakote.