The IS-2 is lighter and faster than the heaviest KV model tanks, with thicker front armour and an improved turret design. It is armed with a powerful 122mm gun that can penetrate the front armour of German Tiger and Panther tanks.
This sprue can be used to build either an IS-2 or IS-85. Made by Battlefront/GF9 for Flames of War but of course useable in any 15mm-1/100 scale game.
In hard plastic it will require assembly using plastic cement.