ASM 509

Also known as

84 mm ASM 509
ASM-509
ASM509

ASM 509 is Saab's 84 mm Carl-Gustaf anti-structure round. Official Saab material describes it as an enhanced explosive munition for built-up areas, with impact or delay modes and a 300 m effective range against structures and light-armoured vehicles.

ASM 509, 84 mm anti-structure round, Munitions

Image source: Saab ASM 509 image asset

Profile / Specs

Profile

Origin: Sweden
Built by: Saab
Type: 84 mm anti-structure round

Specifications

Caliber: 84 mm
Effective range: 300 m
Weight: 4.2 kg
Targets: Structures and enemies protected by structures, and light-armoured vehicles
Firing modes: Impact Mode (I) and Delay Mode (D)
Warhead design: Enhanced blast / thermobaric anti-structure effect

Firing Weapon

Saab lists ASM 509 as part of the Carl-Gustaf 84 mm ammunition family.

Firing weapon

Weapon type

Firing evidence

Carl Gustaf recoilless rifle, Recoilless rifle, Infantry Weapons

Carl Gustaf recoilless rifle

84 mm recoilless rifle

Saab identifies ASM 509 as Carl-Gustaf ammunition and shows it as a round for the recoilless rifle family with impact and delay modes.

Sources: Saab 84 mm ASM 509 fact sheet 2020, Saab Ground Combat Systems Handbook 2026

Fuze And Target Effects

ASM 509 is built for close-range anti-structure fire from the 84 mm Carl-Gustaf family, with Saab listing a 300 m effective range and two fuze choices for different surfaces and interior targets.

Feature	Reader significance	Supported note
Impact mode	Immediate detonation	Saab lists Impact Mode for attacks where the round should function on contact with the target surface.
Delay mode	Post-entry detonation	Saab lists Delay Mode for anti-structure engagements where delayed functioning is useful after the round strikes or enters a target.
Thermobaric effect	Built-up-area and enclosed-target role	U.S. Army Infantry material describes ASM 509 as a thermobaric anti-structure round for targets such as bunkers, caves, small buildings, and protected firing positions.

Timeline

ASM 509 Key Events

Jan 1, 2020
Saab fact sheet defines the anti-structure round
Saab's ASM 509 fact sheet presents the munition as an 84 mm Carl-Gustaf anti-structure round with impact and delay firing modes.
Sources: Saab 84 mm ASM 509 fact sheet 2020
Jun 29, 2025
U.S. Army Infantry article describes specialty MAAWS ammunition
A U.S. Army Infantry article identified ASM 509 as a thermobaric anti-structure round in the MAAWS ammunition set maintained by U.S. Special Operations Command and partner nations.
Sources: U.S. Army light infantry lethality Goose article

Media

ASM 509 Images

ASM 509, 84 mm anti-structure round, Munitions - view 1 — Source: U.S. Army light infantry lethality Goose article

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Sources

Saab 84 mm ASM 509 fact sheet 2020Publisher: Saab | Note: Supports ASM 509's anti-structure role, built-up-area use, 84 mm caliber, 4.2 kg weight, 300 m effective range, impact and delay modes, and enhanced blast warhead. | Accessed: 2026-06-29 Saab Ground Combat Systems Handbook 2026Publisher: Saab | Note: Supports ASM 509's Carl-Gustaf family placement and the round's listed technical details in Saab's ground combat systems handbook. | Accessed: 2026-06-29 Saab Carl-Gustaf M4 product pagePublisher: Saab | Note: Supports ASM 509's placement in the Carl-Gustaf ammunition family and Saab's description of the system's ammo compatibility and anti-structure role. | Accessed: 2026-06-29 Saab battleground hero storyPublisher: Saab | Note: Supports ASM 509 as a round for use against buildings in Saab's Carl-Gustaf ammunition family discussion. | Accessed: 2026-06-29 U.S. Army light infantry lethality Goose articlePublisher: U.S. Army | Note: Supports ASM 509's U.S. MAAWS ammunition context, thermobaric anti-structure role, target-effect description, and the U.S. Army article image used in the gallery. | Accessed: 2026-06-29 Saab ASM 509 image assetPublisher: Saab | Note: Supports image provenance for Saab's official ASM 509 artwork. | Accessed: 2026-06-29