Gun stock

I have a Remington 3200 over/under that has a "trap" butt stock on it, (the drop at comb is less than normal). I read this will cause you to shot high and help hit outgoing, rising clay birds. This is okay if your only shots are from a trap house, i.e. outgoing and rising targets. However, I would like to use this gun at sporting clays and I need a "field grade"  butt stock to get a better fit. Any suggestions? Thanks

Perhaps Remington makes a field grade stock for the gun? I know they make synethtic stocks for other models. Might be cheaper than visiting a gunsmith and in the end you'd have stock for the trap range and a hunting stock.
 
 

Have you even tried it at sporting clays?? It may be fine. I'd just get a new gun before I'd go modifying a stock on a gun that is now out of production. 
I didn't know much about the 3200 so I did a quick search and this was the 1st site I looked at

The Remington 3200 over under shotgun was produced between 1973 and 1984. The shotgun was designed by John Lindy and other members of the design team at Remington Arms. The highly sought after 3200 was originally marketed towards gun owners who participated in skeet, trap and competitive shooting events, where it still has a cult following due to its rarity, as only about 42,000 guns were produced.

 There are 2 ways to look at it if you modify. 1  You just destroyed the value of the original.
2 There are no guarantees that the modification will help which takes us back to #1
Try it as is at the sporting clays and if it doesn't work for you get a new gun for that purpose.
Mike

They make adjustable butt plates. You may be able to get it to shoot where you need if you adjust it properly. 
 
If it has a trap barrel that's a bigger issue, as they tend to shoot high.