Which gun does world of tanks KV2 use?

I used to love playing kv2. The 152mm gun is the best one for this car!

this car is a professional black gun car because the armor of kv2 is too thin! Mobility is also very low! Even a 152 mm robe is still Japanese! One shot is a dead passenger with high injury, the most fire, and the worst bad parts. 152 cannon is the best choice!

If you don't understand, you can ask questions. Thank you. Please adopt.