The next time I see a CHEAP H&R shotgun at a flea market, I'm going to buy it. Just to check out the underlug. There are too many little nooks and crannies in the lug assembly to trust some of the measurements while mounted on a barrel. I've looked, believe me, and I don't think it is practical unless the lug can be removed. I think one of the older ones, with the silver soldered lug, would be easier to remove. Once again, if anybody has a bent, broken or battered barrel, I'd like to have it just for this purpose.