612 vs 712 vs I-12 weights

[Huntermag]

Hello all I am new to the forum and have a question about gun weights. My wife is looking to purchase an autoloader which will most likely be a Franchi or a Benelli. A light gun is the most important feature for her. Anyone out there that could give me a weight comparison of the 612,712,and I-12 in a synthetic stock with a 26 inch bbl. It seems to me that they just keep increasing the weight as the model years go by.

Thanks a bunch,
Huntermag