ORIGINAL: borealis
The turret is that of the KV-85, which is smaller, mainly on the left side, and the commander cupola is in a slightly different position.
Very similar, but not the same as the IS-2, and that's what kept me from buying the kit (well, apart from the price...)
Yes , I agree it seems that the Juckenburg KV-85 turret is too small or some its dimensions are not excately in scale - Profiline KV-85 turret is much more accurate.
Shouldn't the IS-2 turret be a little bigger? - the gun was longer , but Im not an expert
Below IS-2 tank in 1/6 scale - the turret looking different than Juckenburg KV-85 (its bigger)