Heavy Tank-Killer Company (SBX71)
includes four plastic 76mm or 57mm guns, four plastic Gun Crew sprue and four Unit Cards.

Motor rifle brigades fielded the 57mm and the 76mm ZIS-3 gun as combined direct-fire artillery and anti-tank weapon. While not as mobile as the 45mm guns, the 76mm had the penetration and firepower to deal with a wide range of targets, and the mobility to accompany the infantry in attacks.