sktshtr25: May be able to help you out.
Have a Monte Carlo stock that came on a MX-3 Special that I purchased for my son that was too long so it has been sitting in storage for a few years.
Wood measures 15 3/8 inches overall, in a straight line from front to rear, without a pad. Has a soft adjustable, both vertical & horizontal, comb. The comb isn't very soft, probably due to age, but overall condition of the stock is very good.
Don't know if this is an original Perazzi stock or after market and I believe it has been refinished.
I will part with this stock for $285.00 shipped to an address in the 48 contiguous states.
If this sounds like something that you can use & may be interested in PM me and we can work out details.
Tom