Thanks for the video. My question is since the 40 barrel won't fit into the 9mm slide, is there some extra clearance/slop in the fit of the 9mm barrel in the 40 slide, in that same area where the 40 barrel hung up in the 9mm slide? I would guess there is a little extra clearance, but since you have fired the 9mm in the 40 slide, it is not enough of a problem to affect the operation of the gun.

Bob