So here is a related question. I had purchased the Affinity Compact and at the same time purchased the full size stock for it. I went to change the adjustable stock that came on the gun to the full size version. All was well but the full size stock has a considerable step off down to the receiver. At least a couple of millimeters. Would not affect function but looks crappy and makes a noticeable "rough" area right where your back hand is. Anyone know if that is just the way it is or if there is supposed to be some type of spacer or something for the step down from stock to receiver?