Model Variants (Including Prototypes)
KV-2 - Base Series Designation
KV-2A - Initial Production Model; hull based on KV-1A production mark fitting (initially) 122mm howitzer then (later) 155mm howitzer.
KV-2B - Upgraded KV-2 models based on the KV-1B production chassis; asymmetric gun mantlet; 35mm of applique armor added on turret front for improved protection.
KV-2 (Flamethrower Tank) - Limited number of KV-2 systems modified to accept flamethrower system and fuel stores in turret.
KV-3 - Proposed KV-2 uprgade fitting 107mm main gun; never furthered/produced.
KV-2 (German Army) - Examples falling into German hands were used against the Soviets.