The RBS 56B BILL 2 Anti-Tank Guided Weapon[1] is a man-portable or vehicle-mounted guided anti-tank missile using the overfly top attack method to attack the weaker parts of an armoured vehicle.

The BILL 2 is currently produced by Saab Bofors Dynamics, who are located in Karlskoga, Sweden.

It also utilizes additional guidance accuracy via the installed rate gyro, which monitors the tracking movement of the launcher.

The BILL 2 has three firing modes that the launcher's operator can select, before launching the missile.

Total penetration capabilities are classified, but are known to be at least 550 mm in rolled homogeneous armor.