Extended Range High Explosive

Extended Range High Explosive is ST Engineering's 120 mm high-explosive mortar bomb for smoothbore mortar systems. Janes described it as part of the SRAMS Mk II ammunition suite, with a 2.8 kg TNT warhead, a DM111A4/A5 nose fuze, and up to 9 km range.

Extended Range High Explosive, 120 mm high-explosive mortar round for smoothbore mortar systems, Munitions

Image source: 40th Cavalry Regiment soldier loads 120 mm mortar round

Profile

Origin: Singapore
Built by: ST Engineering Land Systems
Type: 120 mm high-explosive mortar round for smoothbore mortar systems
Service note: Contemporary
Designer: ST Engineering Land Systems
Designed: Reported in 2019
Produced: Contemporary
Variants: ER HE, Extended Range HE

mortar high explosive indirect fire artillery

Specifications

Caliber: 120 mm
Munition class: High-explosive mortar bomb
Compatibility: Smoothbore mortar systems, including vehicle-mounted systems
Explosive filling: 2.8 kg TNT
Fuze: DM111A4/A5 nose-mounted fuze
Maximum muzzle velocity: 408 m/s
Maximum range: Up to 9 km

Service And Conflict Use

Service History

In service: Part of ST Engineering's SRAMS Mk II ammunition suite for smoothbore mortar systems.

Compatible Mortar Systems

Janes names Extended Range High Explosive in ST Engineering's SRAMS Mk II ammunition suite, and ST Engineering says its 120 mm extended-range mortar bombs are compatible with smoothbore mortar systems, including vehicle-mounted systems.

Compatible item

Item type

Compatibility evidence

Agrab 120 mm mortar system

Wheeled self-propelled 120 mm mortar carrier

ST Engineering describes 120 mm extended-range mortar bombs as compatible with smoothbore mortar systems, including vehicle-mounted systems, and Janes places ER HE in the SRAMS Mk II ammunition suite.

Sources: IDEX 2018: Singapore's ST Engineering launches SRAMS 120 mm Mk II, Mortar Bombs

Extended Range High Explosive Images

Extended Range High Explosive, 120 mm high-explosive mortar round for smoothbore mortar systems, Munitions - view 1 — Source: 40th Cavalry Regiment soldier loads 120 mm mortar round

Extended Range High Explosive, 120 mm high-explosive mortar round for smoothbore mortar systems, Munitions - view 2 — Source: U.S. Army Sgt. Joshua Morris shoots a 120 mm mortar round

Related Weapon Systems

120 mm HE M62P8 mortar shell, 120 mm high-explosive mortar shell, Munitions

Munitions120 mm HE M62P8 mortar shell120 mm high-explosive mortar shellThe 120 mm HE M62P8 is a Yugoslav-origin high-explosive mortar shell for 120 mm mortars, documented by Yugoimport with 606 mm overall length, 12.6 kg mass, TNT fill, and a UTU/M93P1 point-detonating fuze. Yugoimport's datasheet also ties the shell to the 120 mm M75 mortar, and ARES documents the M62P8 in Syrian reporting as a Serbian-made 120 mm mortar projectile.

3OF34, 120 mm high-explosive fragmentation mortar bomb, Munitions

Munitions3OF34120 mm high-explosive fragmentation mortar bombThe 3OF34 is a Soviet-origin 120 mm high-explosive fragmentation mortar bomb used in the standard ammunition family for Soviet and Russian 120 mm mortars. Open references list it in ammunition tables for the 120-PM-43 and 2B11 mortar families with a 16.1 kg round mass, 3.43 kg explosive filling, and a maximum range of about 7.1 km.

3OF49 high-explosive fragmentation round, 120 mm high-explosive fragmentation round for the 2S9 Nona, Munitions

Munitions3OF49 high-explosive fragmentation round120 mm high-explosive fragmentation round for the 2S9 NonaThe 3OF49 is a Soviet 120 mm high-explosive fragmentation round used with the 2S9 Nona self-propelled mortar system. Open-source references describe it as HE-fragmentation ammunition fitted with impact or radio fuzes, and Belarusian and Russian references list it among the 2S9's documented ammunition types.

Mortar bombs, 120mm, Heavy mortar ammunition, Munitions

MunitionsMortar bombs, 120mmHeavy mortar ammunition120 mm mortar bombs are fin-stabilized heavy mortar projectiles fired from 120 mm mortar systems for indirect fire. They are produced by multiple manufacturers in multiple countries and are designed for compatibility with a wide range of 120 mm mortar tubes and turreted mortar systems depending on pressure limits and round design.

OFM round, 120 mm mortar/artillery round, Munitions

MunitionsOFM round120 mm mortar/artillery roundThe OFM round is the 120 mm ammunition label cited in Defense Express's coverage of the Russian 2S40 Floks, where it was reported to reach about 7.2 km from that wheeled gun-mortar. The catalog treats it as a relationship-only ammunition page because its public documentation is centered on the Floks firing relationship rather than a standalone manufacturer profile.

OFS 13 round, 120 mm high-explosive mortar round, Munitions

MunitionsOFS 13 round120 mm high-explosive mortar roundOFS 13 is a Russian 120 mm high-explosive mortar round reported by Defense Express as one of the ammunition options for the 2S40 Floks, with a cited mass of 17.3 kg and a reported 8.5 km range from that system.

Sources

IDEX 2018: Singapore's ST Engineering launches SRAMS 120 mm Mk IIPublisher: Janes | Note: Supports the exact Extended Range High Explosive designation, SRAMS Mk II ammunition-suite context, 2.8 kg TNT fill, DM111A4/A5 nose fuze, 408 m/s muzzle velocity, and up to 9 km range. | Accessed: 2026-06-23 Mortar BombsPublisher: ST Engineering | Note: Supports manufacturer background and the 120 mm extended-range mortar-bomb family, including compatibility with smoothbore mortar systems and vehicle-mounted mortar systems. | Accessed: 2026-06-23 40th Cavalry Regiment soldier loads 120 mm mortar roundPublisher: Wikimedia Commons | Note: Supports image provenance and public-domain licensing for the primary 120 mm mortar-round image. | Accessed: 2026-06-23 U.S. Army Sgt. Joshua Morris shoots a 120 mm mortar roundPublisher: Wikimedia Commons | Note: Supports image provenance and public-domain licensing for a 120 mm mortar-round firing image. | Accessed: 2026-06-23