12 or 20, Ted? Went back through my records. The 20ga BSS Sidelock I owned (26" barrels) weighed 6#2oz. I've owned lighter 20's, by about a quarter pound, but I wouldn't class that one as being a heavy 20 by any means. Lighter than any Parker Repro 20 I've handled, and way lighter than a BSS boxlock 20.