The BONUS base bleed carrier shell contains two submunitions, which descend over the battlefield on winglets and attack targets with explosively formed penetrator warheads.

This partnership took concrete form on March 7 1993 in Stockholm, with the conclusion of a special agreement on the development and production of an "intelligent" munition: the BONUS OBG artillery shell.

[8] The BONUS was to be a smart anti-tank weapon with a range of over 25 km (16 mi), which releases two submunitions at an altitude of 1,000 m (3,300 ft) above the theater of operations, with terminal and precise target guidance.

While descending, the submunition rotates, scanning the area below with multi-frequency infrared sensors and LiDAR[12] that compares the detected vehicles with a programmable target database.

The United States developed the similar M898 SADARM system (which also descended on a ballute to attack the top surfaces of armoured vehicles), but this was discontinued in favor of the GPS guided M982 Excalibur round.