The M-940 is a 20 mm round produced by General Dynamics primarily for an anti-aircraft role. It has a range of over 2,000 metres (6,600 ft) and a multi-purpose warhead with high explosive and incendiary effects. The round includes a red tracer to aid in targeting. The self-destruct feature engages at approx. 2,500 metres (8,200 ft) and destroys the round, preventing it from falling back to earth and inflicting damage to the surrounding territory. The price per round is approximately $27.[1][2]