The Bushmaster IV is a 40 mm chain-driven

autocannon An autocannon, automatic cannon or machine cannon is a automatic firearm, fully automatic gun that is capable of rapid-firing large-caliber ( or more) armour-piercing, explosive or incendiary ammunition, incendiary shell (projectile), shells, ...

designed and built by

Alliant Techsystems Alliant Techsystems Inc. (ATK) was an American Aerospace manufacturer, aerospace and arms industry, arms manufacturer headquartered in Arlington County, Virginia. The company operated across 22 states, Puerto Rico, and internationally. ATK reven ...

, based on the

M242 Bushmaster The M242 Bushmaster chain gun is a 25 mm caliber, 25 mm (25×137mm) single-barrel chain-driven autocannon. It is used extensively by the United States Armed Forces, U.S. military, such as in the Bradley fighting vehicle, as well as by other NAT ...

, Bushmaster II and Bushmaster III. The Bushmaster IV fires 40×365mmR 3P (Prefragmented, Programmable, Proximity-fuzed),

APFSDS Armour-piercing fin-stabilized discarding sabot (APFSDS), long dart penetrator, or simply dart ammunition is a type of kinetic energy penetrator ammunition used to attack modern vehicle armour. As an armament for main battle tanks, it succeeds arm ...

-T Mk I, and APFSDS-T Mk II rounds. The 3P round will provide air burst capability and the APFSDS-T Mk II can penetrate armor with a thickness in excess of .

Specifications

The Bushmaster IV requires at 24

volts The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI). Definition One volt is defined as the electric potential between two point ...

to operate, fires from a cook off safe

open bolt A firearm is said to fire from an open bolt or open breech if, when ready to fire, the bolt and working parts are held to the rear of the receiver, with no round in the chamber. When the trigger is actuated, the bolt travels forward, feeds a car ...

with absolute hangfire protection, and ejects forwards. It fires

NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...

standard 40×365mm ammunition from an integral linkless feed and has a recoil force of . The ammunition was originally developed for the Bofors 40mm L/70 cannon.

References

Autocannon Chain guns Vehicle-mounted weapons 40 mm artillery {{Machinegun-stub

Specifications

See also

References