Rear of the forward lug.....Trying not to make a mistake here. We are talking about the lugs, that are on the bottom of the barrel, where they engage the receiver. So with the barrels off, and the lugs pointed at your belly and the muzzles to the left, there is a gap, between the rear lug nearest the breech and the front lug which is nearest toward the muzzle. The back side of this front lug, which is facing the lug that is nearest to the breech, is the one that needs "dressing". I certainly do not what to misunderstand this. If that is the case, which would be good. I am probably only looking at virtually just polishing this area.
With the forearm removed, of course the gun opens very nicely with no side play at all.
Do I have my question clear? I don't want to screw up and mess up the wrong place.
Thanks for the guidance!
Dave Katt