Someone was posting about a very light Remington Model 31 with the Aeromet receiver recently. On my way home from hunting yesterday I stopped by my local gun emporium, and they had a real closet queen 12-gauge Model 31L of October 1947 vintage (barrel code ESS). This gun weighs in at 6 pounds 10.4 ounces. It does have very possibly the heaviest possible barrel, a 30-inch full with a solid rib. Not sure what I "need" a 30-inch full for, but it was too nice to leave in a pawn shop!