GIAT M.621 (20 mm)

Description

The M.621 is an autocannon of French origin. It was developed in the 1960's by Giat (now Nexter Systems) as a vehicle and light aircraft armament. The main advantages are its limited weight and low recoil.

Vehicles equipped with this weapon

• SA.341F Gazelle (Modification)
• AH-60

General info

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Available ammunition

• Default: P · HEF-I · HEF-I · API-T
• Universal: HEF-I · API-T
• Air targets: HEF-I · HEF-I · HEF-I · API-T
• Armored targets: API-T · AP-I · AP-I
• Stealth: HEF-I · HEF-I · HEF-I · AP-I

Penetration statistics
Ammunition	Penetration @ 0° Angle of Attack (mm)
	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
P	15	13	10	8	7	6
API-T	40	36	22	12	6	3
HEF-I	5	5	3	2	2	2
AP-I	40	36	22	12	6	3

Shell details
Ammunition	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
						0%	50%	100%
P	1,030	0.1	-	-	-	47°	56°	65°
API-T	1,030	0.1	-	-	-	47°	60°	65°
HEF-I	1,030	0.1	0.2	0.1	16	79°	80°	81°
AP-I	1,030	0.1	-	-	-	47°	56°	65°

Comparison with analogues

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Usage in battles

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Pros and cons

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Pros:

Cons:

History

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Media

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See also

• 20F2 (20 mm) - Based on the M.621 design

External links

• [NavWeaps.com] GIAT M621