The turret on the 1:32 21c Tiger was not designed to come off (unless you unscrew it, as ChairmanMilo suggested).
The Tiger. along with the M-18, M-41, M-5, SDK 251 and SDK 222 are the first of the 32x vehicles to be made, way back in 2002. While the turrets are removable on the SDK 222, the M-5 and M-18, that was not done on the Tiger.
Don't worry, there is no interior on the 32x Tiger, just a few holes with pegs to hold the German tanker figures, which were designed to seperate at the waist
