20F2 (20 mm)

Description

The GIAT Industries 20 mm F2 (otherwise known as M693) is a dual feed autocannon which fires the standard 20x139 mm munitions. It is a gas operated autocannon that has three firing modes, those being single shot, burst and safe. The gas system of the weapon operates via two vents on either side of the barrel, through which the gases push against the two pistons. While firing, the two pistons are pushed back, moving the struts backwards so that the breech block can move to the rear. In this way, all the firing forces are developed along the barrel centerline which maximizes accuracy.

Vehicles equipped with this weapon

• AMX-30 (1972)
• AMX-30B2
• AMX-30B2 BRENUS
• AMX-32
• AMX-40

General info

Main caliber of the weapon is the 20x139 mm bullet. The length of the autocannon is 2,600 mm, while the barrel itself is 100 calibers. The height of the autocannon was 260 mm and the weight was 71 kg. Rate of fire can be up to 900 rounds per minute.

Comparison with analogues

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Usage in battles

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Pros and cons

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Cons:

History

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Media

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See also

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• reference to the article about the variant of the cannon/machine gun;
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External links

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• encyclopedia page on the weapon;
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