Deactivated M20B1 3.5 Inch Super Bazooka In very good deactivated condition, with correct sling. Full working parts, including optics, and can be broken down. The M20B1 Super Bazooka first saw action in the Korean War and was in use with US forces until 1969 and reserve units until 1975. The 3.5 Inch HEAT (High Explosive Anti-Tank) shaped charge rocket had an effective range of 250 metres and could penetrate an inch and a half of rolled armour plate at ninety degree angles. All deactivated weapons sold by D and B Militaria are deactivated in the United Kingdom and hold London or Birmingham proof marks and a certificate stating that the weapon has been deactivated correctly and is legal within the U.K.