M621 cannon
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.
| M621 | |
|---|---|
 | |
| Type | Automatic cannon |
| Place of origin | France |
| Production history | |
| Designer | GIAT Industries |
| Manufacturer | Nexter Systems |
| Variants | see variants |
| Specifications | |
| Mass | 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 | 20×102mm |
| Caliber | 20mm |
| Action | Blowback operated |
| Rate of fire | 750 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 |
Variants
THL 20
Turreted cannon for helicopters.[1]
POD NC 621
Cannon pod for helicopters and light aircraft.[2]
ARX 20
Remotely controlled weapon station with M621 and a 7.62×51mm machinegun.
SH20
Door mounted cannon for helicopters.[3]
CP 20
Pintle-mounted cannon for vehicles and boats.[4]
15A
Cannon for naval ships.[5]
NARWHAL
Remote-controlled naval gun.[6]
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See also
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