Yeah it's exactly the same. I have on on my pro/am. The pro/am, pro-lite and carbine are the same main body. Pro/am and the pro-light are the same except the pro/am has aluminum front stock, and grip, and the pro-lite has plastic front stock and grip.
I really wouldn't know where you could get that unless some one has one laying around they don't want.
This is the part, but isn't available from tippmann anymore. Vertical Adapter [Pro-Carbine] CA-08C
Not sure where you are going to find it. They stopped making that style marker a long time ago. You might be able to have some one on the forum make you one. They are pretty simple.
Here is mine.
It has a carbine grip but original aluminum front stock. I have the aluminum grip some where.