M621 cannon

M621
Type	Automatic cannon
Place of origin	France
Production history
Designer	GIAT Industries
Manufacturer	Nexter
Variants	see variants
Specifications
Weight	45.5 kg (100.31 lb)
Length	2,207 mm (86.9 in)
Width	202 mm (8.0 in) (in mount)
Height	245 mm (9.6 in) (in mount)
Cartridge	20x102mm
Caliber	20mm
Action	Blowback operated
Rate of fire	800 rounds/min
Muzzle velocity	1,005 m/s (3,297 ft/s) (AP-T) 985 m/s (3,231.6 ft/s) (HEI and TP)
Feed system	Open-link M12 belt

The M621 is a 20 mm automatic cannon of French design, developed by Nexter as on-board armament for armored vehicles, aircraft, helicopters and small coastal vessels of the French Navy.

Turreted cannon for helicopters.

Cannon pod for helicopters and light aircraft.

Remotely controlled weapon station with M621 and a 7.62x51 mm machinegun.

Door mounted cannon for helicopters.

Pintle-mounted cannon for vehicles and boats.

Cannon for naval ships.

Remote-controlled naval gun.

...
Wikipedia