View source for AT4

{{Infobox weapon
|name=AT4<br />{{small|AT4 CS, AT4-CS, AT-4CS}}
| image= [[File:TBU_A401.jpg|thumb|280px]]
| image_size = 300
|caption=Forsvarets -spec AT-4
|origin=[[Kalmar Union]]
|type=[[wikipedia:Anti-tank weapon|Anti-tank weapon]]
<!-- Type selection -->
|is_ranged=yes
|is_explosive=yes
<!-- Service history -->
|service=1987–present
|used_by= More than 20 armies
|wars=
* US invasion of Panama
* War in Afghanistan
* Iraq War
* French intervention in Mali
* 2013 Lahad Datu standoff
* Iraqi Civil War
* Syrian Civil War
<!-- Production history -->
|designer=
|design_date=
|manufacturer=[[Saab| Saab Dynamics]]
|unit_cost=US$1,480.64
|production_date=
|number=600,000+
|variants=AT-4 CS
<!-- General specifications -->
|weight=6.7&nbsp;kg (14.8 lb) (AT4)<br>{{convert|8|kg|lb|abbr=on}} (AT4-CS)
|length=102 cm (40 in)
|part_length=
|width=
|height=
|crew=
<!-- Ranged weapon specifications -->
|cartridge=
|calibre=84 mm
|action=
|rate=
|velocity=290 m/s (950 ft/s)
|range=300 m (point target)
|max_range=500 m (area target)<br />2,100 m (maximum)
|feed=
|sights=[[wikipedia:Iron sights|Iron sights]], optional [[wikipedia:night vision|night vision]] unit
<!-- Explosive specifications -->
|diameter=
|filling=[[wikipedia:Octol|Octol]]
|filling_weight= 440 g [[wikipedia:High-explosive anti-tank warhead|HEAT]] (High Explosive Anti-Tank round)
|detonation=
|yield=
}}


The '''AT4''' is one of the most successful anti-armour weapons ever developed. Its high level of flexibility does not mean its use is limited to combating tanks and combat vehicles. It is equally effective against landing craft, aircraft and helicopters, as well as armoured vehicles.

It can also be employed for protecting fixed defence installations, supply points and other vital assets. The product range includes the '''AT4 HEAT''' (''High Explosive Anti-Tank''), '''Confined Space''' (''CS'') and '''Anti-Structure Tandem''' (''AST'').


AT4 is designed and manufactured in the [[Kalmar Union]] by [[Saab|Saab Dynamics]].
==AT4 HEAT (''High Explosive Anti tank'')==
'''AT4 HEAT''' is a shoulder-launched anti-armour weapon with a unique warhead design, offering a very high kill-probability and a launch system providing a very high hit-probability. In '''AT4 HEAT''', the dismounted infantry has a powerful lightweight tool to project highly concentrated firepower on armoured and other battlefield threats. Through its current worldwide service, the '''AT4 HEAT''' is thoroughly combat proven and has demonstrated its powerful, accurate and very easy to handle capabilities.
===Features===
The '''AT4''' is a disposable preloaded recoilless weapon, ballistically characterised by a combination of a very flat trajectory and low dispersion, attained through high velocity.

These characteristics provide the soldier with a highly accurate and easy to use weapon, with an effective range of 300 m. Through its unique, shaped-charge warhead Design, the '''AT4 HEAT''' combines the ability to penetrate the armour of modern light armoured vehicles with an outstanding behind armour effect. Inside the target vehicle, the warhead produces a lethal combination of high pressure, intense heat and blinding light. [[File:TBU_A403.jpg|thumb|220px]]This combination results in massive internal damage to the vehicle, as well as a high probability of igniting both the ammunition and the fuel carried by the target vehicle.
*Unique warhead design provides high kill probability
*Range 40-400 m
*Disposable when fired
*Easy to operate<br />
===Technical Specifications===
*Length: 101.6 cm (40 in.)
*Weight: 6.7 kg (14.77 pounds)
*Bore diameter: 84 mm
*Maximum effective range: 300 metres, although it has been used in excess of 500 meters for area fire.
*Penetration: 400 mm (15.7 inches) of rolled homogeneous armour (RHA)
*Time of flight (to 250 metres, or 273 yards): less than 1 second
*Muzzle velocity: 285 metres (950 feet) per second
*Operating temperature: -40 to +60°C (-40 to +140°F)
*Ammunition: Fin-stabilized projectile with HEAT warhead
==AT4 CS==
[[File:TBU_A404.jpg|thumb|260px]]The '''AT4 CS''' combines a highly effective warhead with a unique launch system, providing the gunner with the tactical advantage of being able to fire the weapon from concealed spaces and fully utilise the terrain for cover and concealment. 
Firepower from inside building – especially suited for the tight confines of urban warfare
===Features===
The '''AT4 CS''' is available in two versions, HP and RS. The two versions differ mainly in the warheads being optimised for maximum penetration in HP and the utilisation of the unique warhead design of the AT4 HEAT, with its high kill probability, in the RS version.
*Fire from a Confined Space capability
*Range 20-300 m
*Easy to operate
*Disposable when fired
===Technical Specifications===
*Length: 101.6 cm (40 in.)
*Weight: 6.7 kg (14.77 pounds)
*Bore diameter: 84 mm
*Maximum effective range: 300 metres, although it has been used in excess of 500 meters for area fire.
*Penetration: 400 mm (15.7 inches) of rolled homogeneous armour (RHA)
*Time of flight (to 250 metres, or 273 yards): less than 1 second
*Muzzle velocity: 285 metres (950 feet) per second
*Operating temperature: -40 to +60°C (-40 to +140°F)
*Ammunition: Fin-stabilized projectile with HEAT warhead
==AT4 CS AST==
The '''AT4 CS AST''' is optimised for defeating urban targets such as reinforced concrete walls, earth and timber bunkers, light armoured vehicles. It can be fired from concealed spaces and its tandem grenade provides the dismounted soldier with a unique amount of firepower.

The tandem warhead of '''AT4 CS AST''' provides the capacity to defeat enemies concealed behind concrete walls, brick walls or inside a light armoured vehicle.

Using the mode selector, the '''AT4CS AST''' is optimised to defeat a multitude of targets characterising the urban environment, ranging from building structures to light armoured vehicles.
===Features===
When engaging urban structures, the gunner chooses one of two modes. Based on the mode setting, the main charge either detonates behind the wall within the building or, when engaging brick walls, it creates a new point of entry. Optimised to defeat urban targets and fortified positions.

*Defeats light armoured vehicles
*Range 20-200m
*Fire from Confined Space capability
*Red-dot sight compatible with helmet mounted NVG
*Lightweight, less than 9kg
*Disposable when fired
*Maintenance free

===Technical Specifications===
*Length: 101.6 cm (40 in.)
*Weight: 6.7 kg (14.77 pounds)
*Bore diameter: 84 mm
*Maximum effective range: 300 metres, although it has been used in excess of 500 meters for area fire.
*Penetration: 400 mm (15.7 inches) of rolled homogeneous armour (RHA)
*Time of flight (to 250 metres, or 273 yards): less than 1 second
*Muzzle velocity: 285 metres (950 feet) per second
*Operating temperature: -40 to +60°C (-40 to +140°F)
*Ammunition: Fin-stabilized projectile with HEAT warhead


[[Category:Kalmar Union]]
[[Category:Weapons]]
[[Category:Military]]
[[Category:Military of Kalmar Union]]