M-940 20mm MPT-SD Round
Encyclopedia
The M-940 is a 20 mm
20 mm caliber
The 20 mm caliber is a specific size of cannon or autocannon ammunition, commonly the smallest caliber which is unambiguously a cannon and not a heavy machine gun....

 round produced by General Dynamics
General Dynamics
General Dynamics Corporation is a U.S. defense conglomerate formed by mergers and divestitures, and as of 2008 it is the fifth largest defense contractor in the world. Its headquarters are in West Falls Church , unincorporated Fairfax County, Virginia, in the Falls Church area.The company has...

 primarily for an anti-aircraft
Anti-aircraft warfare
NATO defines air defence as "all measures designed to nullify or reduce the effectiveness of hostile air action." They include ground and air based weapon systems, associated sensor systems, command and control arrangements and passive measures. It may be to protect naval, ground and air forces...

role. It has a range of over 2000 metres (6,561.7 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. 2500 metres (8,202.1 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.
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