HMP400

Belgian 12.7mm heavy machine gun pod produced by FN Herstal for mounting on light attack helicopters and aircraft.

Compiled from public sources ·primary reference ↗ ·last verified 2026-07-05

Procurement snapshot

Availability & export

National export licensing

Subject to Belgium export-control approval; verify eligibility with the manufacturer.

Channel: Direct commercial / G2G

Fielded & proven

Operator data not public

Status: active.

Lifecycle cost (est.)

No public unit price to model from.

Interoperability

No standardised NATO calibre / datalink detected in public specs.

Derived guidance from public data, export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.

Full specifications

Firepower

Armament, payload and guidance.

Caliber Bore diameter of the main gun or rifle. Larger throws heavier projectiles; not simply better, ammunition commonality matters.: 12.7 mm

Munition

Round type, penetration, velocity and projectile data.

Caliber Bore diameter the round is fired from.: 13 mm

Specifications compiled from public FN Herstal and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-07-05.

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