General Dynamics Ordnance and Tactical Systems

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Munitions

United States

General Dynamics Ordnance and Tactical Systems

M830A1 HEAT-MP

U.S. 120 mm multipurpose anti-tank HEAT round with a proximity fuze for airburst anti-personnel use, fired from the M256 smoothbore gun on the M1 Abrams.

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

Procurement snapshot

Availability & export

US ITAR-controlled

Export needs U.S. State Dept (DDTC) approval; end-use & re-transfer restrictions apply.

Channel: Foreign Military Sales (FMS) or Direct Commercial Sale

Fielded & proven

Operator data not public

Status: active.

Lifecycle cost (est.)

No public unit price to model from. Why so few systems publish one →

Interoperability

120 mm NATO smoothbore

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.

Firepower specifications
Caliber Bore diameter of the main gun or rifle. Larger throws heavier projectiles; not simply better, ammunition commonality matters.	120 mm

Physical

Dimensions, weight and crew.

Physical specifications
Length Overall length including gun/probe where applicable.	0.98 m
Combat weight Fully loaded weight. Lighter eases transport and bridging limits; heavier often means more armor.	22 kg

Munition

Round type, penetration, velocity and projectile data.

Munition specifications
Round type APFSDS (kinetic sabot), HEAT / multipurpose, HE-FRAG, canister or gun-launched ATGM.	HEAT-MP
Penetration Published/estimated rolled-homogeneous-armour-equivalent penetration. Values are open-source estimates; real figures are classified.	600 mm RHA Stronger than 55% of munitions
Muzzle velocity Speed as the projectile leaves the barrel. Higher flattens trajectory and shortens time-to-target.	1,410 m/s Stronger than 48% of munitions
Projectile mass Mass of the projectile or penetrator assembly.	11.4 kg

Specifications compiled from public General Dynamics Ordnance and Tactical Systems and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-07-05.

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