The M621 is a 20 mm automatic cannon of French design, developed by KNDS France as on-board armament for armored vehicles, aircraft, helicopters and small coastal vessels of the French Navy. It fires the same 20×102mm ammunition as the M61 Vulcan.
Variants THL 20 Turreted cannon for helicopters.THL 20
POD NC 621 Cannon pod for helicopters and light aircraft.POD NC 621
ARX 20 Remotely controlled weapon station with M621 and a 7.62×51mm machinegun.
SH20 Door mounted cannon for helicopters.SH20
CP 20 Pintle-mounted cannon for vehicles and boats.CP 20
15A Cannon for naval ships.15A - 15B
NARWHAL As remote-controlled naval gun on the Nexter Narwhal 20A.NARWHAL
See also GIAT 30 20 mm modèle F2 gun M197 electric cannon
References