Profile
- Origin
- Sweden
- Built by
- Saab
- Type
- 84 mm confined-space anti-armour round
- Service note
- Modern Carl-Gustaf M3/M4 ammunition family
Munitions
HEAT 655 CS
Also known as
- 84 mm HEAT 655 CS
- 84 mm HEAT 655CS
- HEAT 655CS
- Carl-Gustaf HEAT 655 CS
- Carl Gustaf HEAT 655 CS
HEAT 655 CS is Saab's Swedish 84 mm Carl-Gustaf anti-armour round optimized for firing from confined spaces. Saab launched the round at the end of 2013, describes it as the first Carl-Gustaf ammunition designed around reduced back blast for indoor firing, and lists a 4.8 kg complete weight with a 300 m effective range.
Profile / Specs
Specifications
- Caliber
- 84 mm
- Complete round weight
- 4.8 kg
- Effective range
- 300 m
- Warhead
- Shaped-charge HEAT
- Launch context
- Confined space / urban warfare
- Back-blast control
- Solid counter-mass reduces back blast and sound pressure
- Firing weapon
- Carl-Gustaf 84 mm recoilless rifle family
- Target set
- Armoured targets in urban scenarios
Variants
HEAT 655 CS sits in Saab's Carl-Gustaf 84 mm anti-armour ammunition family as the confined-space option, distinct from the longer-range rocket-assisted 551-series rounds and the tandem-warhead 751/758 line.
| Variant | Configuration | Designation notes |
|---|---|---|
 | Earlier rocket-assisted HEAT round | Saab and specialist references place HEAT 551 in the Carl-Gustaf anti-armour family as a rocket-assisted shaped-charge round with longer range than HEAT 655 CS. |
| Reduced-sensitivity 551-series round | EDR Magazine identifies HEAT 551C RS as the currently produced reduced-sensitivity 551-series round, with increased behind-armour effect compared with earlier 551 ammunition. |
 | Tandem-warhead anti-ERA round | SA Defense Journal and EDR place HEAT 751 in the same anti-armour family as a tandem shaped-charge round for explosive reactive armour targets. Sources: SA Defense Journal Carl-Gustaf M4 article, EDR Magazine Carl-Gustaf HEAT 758 analysis |
 | Later Firebolt-compatible tandem round | EDR Magazine describes HEAT 758 as a later Carl-Gustaf anti-tank round built for newer explosive reactive armour threats and Firebolt-compatible fire-control integration. |
Firing Weapon
HEAT 655 CS is an 84 mm Carl-Gustaf round built around confined-space anti-armour shots from urban positions.
| Carrier | Carrier type | Carriage evidence |
|---|---|---|
 | 84 mm recoilless rifle | Saab describes HEAT 655 CS as Carl-Gustaf ammunition and says every 84 mm Carl-Gustaf munition is compatible with every version of the weapon family. Sources: Saab HEAT 655 CS fact sheet, Saab Carl-Gustaf M4 product page |
Confined-Space Anti-Armour Role
HEAT 655 CS fills a narrower role than Saab's longer-range Carl-Gustaf anti-armour rounds: it keeps the 84 mm HEAT effect but trades range for reduced back blast and lower sound pressure when fired from inside buildings.
| Round | Family role | Reader note |
|---|---|---|
| HEAT 655 CS | Confined-space anti-armour round | Saab lists a 4.8 kg shaped-charge round with a solid counter-mass and 300 m effective range for urban firing positions. |
| Rocket-assisted HEAT round | Longer-range anti-armour round in the 84 mm Carl-Gustaf family. |
| Tandem anti-ERA round | Tandem shaped-charge option for explosive reactive armour targets. |
| Later Firebolt-compatible anti-tank round | Newer tandem round tied to Firebolt fire-control communication and newer ERA threats. |
Timeline
HEAT 655 CS Key Events
Saab launches HEAT 655 CS
Saab says HEAT 655 CS was launched at the end of 2013 as the first Carl-Gustaf round fully optimized for confined-space firing.
Sources: Saab India Carl-Gustaf history
First customer delivery
Saab's India market history quotes a Saab executive saying the first HEAT 655 CS delivery shipped to a customer by the end of 2013.
Sources: Saab India Carl-Gustaf history
Shown to a wider audience
Saab says HEAT 655 CS was showcased more broadly in 2014 alongside new AT4 confined-space capabilities.
Sources: Saab India Carl-Gustaf history
Media
HEAT 655 CS Videos
HEAT 655 CS Images
Related Weapon Systems
Sources
Saab HEAT 655 CS fact sheetPublisher: Saab | Note: Supports the round's confined-space anti-armour role, Carl-Gustaf compatibility, 4.8 kg complete round weight, 300 m effective range, shaped-charge warhead, solid counter-mass, and official Saab background. | Accessed: 2026-06-29Saab India Carl-Gustaf historyPublisher: Saab | Note: Supports HEAT 655 CS launch timing, first-customer delivery by the end of 2013, first wider 2014 showcase, and Saab's description of the round as the first Carl-Gustaf ammunition fully optimized for confined-space firing. | Accessed: 2026-06-29Saab Carl-Gustaf M4 product pagePublisher: Saab | Note: Supports Carl-Gustaf M4 system context, 84 mm ammunition compatibility across every version of the weapon, and the broader anti-armour, anti-structure, anti-personnel, and support ammunition family. | Accessed: 2026-06-29SA Defense Journal Carl-Gustaf M4 articlePublisher: Small Arms Defense Journal | Note: Supports HEAT 655 CS confined-space positioning and family context with other Carl-Gustaf anti-armour rounds. | Accessed: 2026-06-29EDR Magazine Carl-Gustaf HEAT 758 analysisPublisher: EDR Magazine | Note: Supports Carl-Gustaf anti-armour ammunition family context for HEAT 551C RS, HEAT 751, and HEAT 758, including the newer round's Firebolt-compatible fire-control context. | Accessed: 2026-06-29Military Industries HEAT 655 CS trial thumbnailPublisher: YouTube | Note: Supports the page image and gallery image for the selected HEAT 655 CS ammunition-trial video. | Accessed: 2026-06-29