Yes, need to see pics. If the original rabbit, it had a small flat stock (like a toy cork gun) with no buttplate and it had a small flat bolt. I have one in smooth bore. 2 nights ago an old gent gave me some guns and amongst them was a Cooey Rabbit. It has a stock like the Ace1 and a round bolt handle. I don't know if the stock was replaced at some point or if they marked some of the "newer Aces" as Rabbit. So a stock from an Ace will fit. Cool little boy's guns. Below are pics of mine. The top one is the original style stock. The second one is the Ace style. It has rounded features and a steel buttplate.