Condor Tophat

Question guys! Can I drop one of this new tapered tophats in my tank.I have an early version Condor s/n 331. my tophat looks like a talons tophat. The shaft is stright and adjustable not tapered. But I still shoot Beeman Kodiak @ 1147 fps. the only mod I have ever done was a valve spring change. What would I have to do to add one of those one piece tophats ?