I have inherited a Perazzi MX8 Trap gun, virtually unused, but need to use it for skeet and sporting. One barrel is multi-choked and I can get the other done too.
The obvious difference is the stock and my question is what modification will I have to make to it to turn it into a skeet/ sporting shotgun?
I do have access to a MX 8 skeet for duplication, but would prefer to modify the trapgun's own stock.
Your input appreciated.

Don't.

Since it's YOUR shotgun...go ahead an modify it any darn way you want to, within your local laws.
Now...that said, as a general rule, you'll find the comb on the Trap stock to be higher than you'd like for Skeet/Sporting use. If you're good with hand tools...you can slowly, and carefully take some of the excess height off the comb to lower the P.O.I. and get the gun to shooter more "flat".

NO PROBLEM!!that hole in the buttpad isnt there to reduce weight.figure what dimensions you need&buy/trade for a butt stock with those dimensions.a nice touch on a sporting/pigeon/helice gun is a schnauble foreend.should be able to do it for<$500-600.let me know what you need,i may have one thatll work.

Sure you dont have a pigeon gun w screw in chokes in the bottom&.045 choke in the top for those rockets heading for the back fence 50 yds away?

Thanks for the input.
Ole, I take it your reservation is for resale value and if so I take your point.
The other option is to have a stock made and put the original aside. There is a very competent local stockmaker who can do that but I think it will always look mismatched.
Thanks for the offer, Kim, but you are too far away!
Incidentally, this gun's mate, the MX8 skeet gun, is still used by my father and has fired countless rounds for almost forty years but the trap gun has been a safe queen for the entire time.

Perazzi makes replacement stocks which vary in about 1/8"DAC from 1 1/4 to 1 3/4.get a Perazzi catalog&see what will work for you.Varying wood grades are also available up to SCO/ORO.you simply cannot get one made as cheaply.Unscrew one off&screw other on.Might try your skeet gun stock for starters.Dims were usually 1 1/2X2 1/2.Go to any big shoot&someone will have a garbage can full of takeoffs.These are not Fabbris.A stock removal tool,a spare parts kit& a nail will keep you working just fine.

You can cut the stock below the comb and make it an adjustable comb. Make sure that the saw (cut) kerf is about a quarter inch.

@Karoo,

I believe KimR gave you the best advice.

Probably not a good idea to mess with the existing Trap stock and forend if you are planning on selling this gun in future.

Best thing to do would be to get a replacement stock and forend. In USA Soft Touch was making spare Perazzi stocks a little while ago for Sporting Clays. Here is their website:
http://www.softtouchstocks.com

Forend on the Perazzi is quite different for Trap VS Sporting Clays. So make sure you change that as well and not just the stock.

Barrel you have on the gun is probably high rib. That should be ok, as most new Sporting Clays guns are coming out with high ribs.

collector,Thanks!been there done that twice.once for my son&his MX8.went from trap>bunker>box birds>helice.i went trap>box birds>helice.Perazzi makes it easy.