I was at a local gunshop this morning and was looking at a model 12 2-3/4" that had a Simmons rib. The gun looked to be in excellent condition except some nitwit had inlayed a white plastic diamond in the stock at some point. The price $379 does not seem out of line for model 12's in this area; however, my question is does the Simmons rib add or detract from the value of the gun?