I have a Winchester 120 Ranger in 20 gauge. It is a very nice gun, it has the smoothest action i have ever felt on a shotgun. Unfortunatly, someone has cut down the rear stock so it would be better sized for a youth. My question is will a Winchester 1300 stock fit on this? I found one on a website, it says, "Winchester 1300 rear stock, Plain finish, 12 gauge". Will a 12 gauge stock fit on a 20g? are they different sizes? Thanks for any help, I have wanted a stock for a while.