20 mm gun pod

Also known as

NC621
NC 621
NC621 POD
20M621 pod

KNDS's NC621 is a jettisonable 20 mm aircraft gun pod built around the 20M621 cannon. Official KNDS documentation gives a 180-round capacity, 750 rounds per minute firing rate, and compatibility with helicopters, light aircraft, and drones; AT-3 references also list 20 mm gun pods among the aircraft's carried stores.

20 mm gun pod, Aircraft gun pod, Munitions

Image source: NC621 | KNDS Group

Profile / Specs

Profile

Origin: France
Built by: KNDS France
Type: Aircraft gun pod
Service note: Modern

gun podaircraft armament

Specifications

Caliber: 20 mm
Cannon: 20M621
Ammunition capacity: 180 rounds
Rate of fire: 750 rounds/min
Weight: 174 kg with 180 rounds
Mounting: NATO standard 14-inch attachment points
Effective range: Up to 2,000 m

Carrier Aircraft

TaiwanAirPower lists 20 mm gun pods among the AT-3's carried stores.

Carrier

Carrier type

Carriage evidence

AIDC AT-3/T-5 Brave Eagle, Advanced jet trainer and light attack aircraft family, Aircraft & UAVs

AIDC AT-3/T-5 Brave Eagle

Advanced jet trainer and light strike aircraft

TaiwanAirPower lists 20 mm gun pods among the AT-3's carried stores.

Sources: AIDC AT-3 weapons list | TaiwanAirPower

Service And Conflict Use

Service History

In service: Installed on helicopters, light aircraft, and drones as a jettisonable 20 mm cannon pod.

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Sources

NC621 | KNDS GroupPublisher: KNDS Group | Note: Supports NC621 product background, KNDS France manufacturer context, technical specifications, and official image provenance. | Accessed: 2026-06-27 H215M missions | AirbusPublisher: Airbus | Note: Supports the H215M mission page's 20 mm gun pod option and 180-round fit context. | Accessed: 2026-06-27 AIDC AT-3 weapons list | TaiwanAirPowerPublisher: TaiwanAirPower | Note: Supports the AT-3 store list that includes 20 mm gun pods among carried weapons. | Accessed: 2026-06-27