Infantry Weapons

M136 AT4

Also known as
  • AT4
  • AT-4
  • M136
  • M136A1
  • AT4 CS
  • AT4CS

The M136 AT4 is the U.S. designation for an Americanized Saab AT4, a single-shot 84 mm shoulder-fired anti-armor weapon issued as a disposable launch tube. It gives infantry a lightweight close-range option against light armor, bunkers, gun positions, and buildings, while the wider AT4CS family adds confined-space variants for different target effects. Ukraine has received AT-4 systems through U.S. security assistance during the 2014 Russia-Ukraine War.

M136 AT4, Disposable shoulder-fired light anti-armor recoilless weapon, Infantry Weapons
Image source: M136 AT4 Light Anti-tank Weapon

Role in Conflicts

Profile / Specs

Profile

Origin
Sweden / United States
Type
Disposable shoulder-fired light anti-armor recoilless weapon
Service note
U.S. service from the mid-1980s; supplied to Ukraine during the full-scale 2014 Russia-Ukraine War
Designer
FFV Ordnance; U.S. M136 changes developed for U.S. Army requirements
Designed
Early 1980s AT4 family; M136 selected by the U.S. Army after U.S.-specific modifications
Unit cost
$1,480.64 unit replacement cost reported in legacy FAS technical data
Produced
1980s-present for AT4 family variants
Number built
More than 1 million AT4 family weapons produced

Specifications

Caliber
84 mm
Weight
6.7 kg / 14.8 lb complete M136 system
Length
1,020 mm / 40 in launcher
Maximum effective range
300 m
Maximum range
2,100 m
Muzzle velocity
About 290 m/s / 950 ft/s
Warhead
High-explosive anti-armor shaped-charge round
Armor penetration
About 400 mm rolled homogeneous armor
Designation And Effects

M136 is the U.S. service designation for the Army's AT4, while AT4CS identifies confined-space launchers in Saab's wider family. The suffixes below help separate U.S. service terminology from later Saab family variants.

DesignationFamily roleReader note
M136U.S. Army AT4Americanized disposable 84 mm launcher adopted for U.S. Army service.
M136A1 AT4-CSConfined-space U.S. variantListed by the U.S. Army among shoulder-launched munitions as the AT4-CS follow-on.
AT4CS HP / RS / ER / AST / HESaab AT4CS familyManufacturer designations split high-penetration, reduced-sensitivity, extended-range, anti-structure tandem-warhead, and high-explosive effects.

Sources: Shoulder-Launched Munitions; Saab's Individual Assault Munition; The U.S. Army and the AT4: An Enduring Partnership, Never Taken for Granted.

Variants

The record's M136 designation covers the U.S. Army AT4, while Saab's wider AT4CS family uses suffixes such as RS, HP, ER, AST, and HE to distinguish confined-space variants by target effect, range, and warhead emphasis.

VariantConfigurationDesignation notes
M136A1 AT4-CSU.S. confined-space variant

U.S. Army shoulder-launched munitions material lists the M136A1 AT4-CS as the confined-space follow-on in the AT4 family.

Sources: Shoulder-Launched Munitions

AT4CS RSReduced-sensitivity confined-space variant

Saab identifies AT4CS RS as the reduced-sensitivity member of the AT4CS family.

Sources: Saab's Individual Assault Munition

AT4CS HPHigh-penetration confined-space variant

Saab identifies AT4CS HP as the high-penetration member of the AT4CS family.

Sources: Saab's Individual Assault Munition

AT4CS ERExtended-range confined-space variant

Saab identifies AT4CS ER as an extended-range AT4CS family variant.

Sources: Saab's Individual Assault Munition

AT4CS ASTAnti-structure tandem-warhead variant

Saab identifies AT4CS AST as an anti-structure tandem-warhead version for urban targets and fortified positions.

Sources: Saab's Individual Assault Munition

AT4CS HEHigh-explosive confined-space variant

Saab identifies AT4CS HE as the high-explosive AT4CS family variant.

Sources: Saab's Individual Assault Munition

Timeline

M136 AT4 Key Events

  1. U.S. Army adopts the M136 AT4

    Saab's U.S. Army AT4 history describes the M136 as an Americanized AT4 adopted after U.S.-specific changes to the Swedish design.

    Sources: The U.S. Army and the AT4: An Enduring Partnership, Never Taken for Granted

  2. 1990 Gulf War service

    Saab identifies AT4 combat use by U.S. forces during Desert Storm, including a Marine tank-kill account involving AT4 munitions.

    Sources: Saab's Individual Assault Munition

  3. Ukraine security-assistance roll-up lists 6,000 AT-4s

    A U.S. Department of Defense roll-up listed a March 2022 Ukraine package that included 6,000 AT-4 anti-armor systems.

    Sources: Fact Sheet on U.S. Security Assistance for Ukraine (Roll Up) as of April 21, 2022

  4. Additional AT-4 deliveries for Ukraine

    The U.S. Department of Defense announced another Ukraine security-assistance package that included additional Javelin and AT-4 anti-armor systems.

    Sources: Biden Administration Announces Additional Security Assistance for Ukraine

Media

M136 AT4 Images

M136 AT4, Disposable shoulder-fired light anti-armor recoilless weapon, Infantry Weapons - view 1
Source: M136 AT4 In Action
Related Weapon Systems
Instalaza C-90 / C90-CR, Disposable 90 mm shoulder-fired rocket launcher, Infantry WeaponsInfantry WeaponsInstalaza C-90 / C90-CRDisposable 90 mm shoulder-fired rocket launcherThe Instalaza C-90 / C90-CR is a Spanish disposable 90 mm shoulder-fired rocket launcher family built around single-use tubes, integrated 2x optics, and mission-specific anti-tank, dual-purpose, smoke, and anti-bunker munitions. Open-source conflict records tie the system to captured C-90 series launchers in Yemen and to Spain's 2022 military aid for Ukraine, where C90 launchers were documented in Ukrainian hands.
MATADOR, Disposable shoulder-fired anti-armor recoilless weapon, Infantry WeaponsInfantry WeaponsMATADORDisposable shoulder-fired anti-armor recoilless weaponMATADOR, also marketed in the RGW 90 family, is a 90 mm disposable shoulder-fired recoilless weapon developed with Singaporean, German, and Israeli participation for anti-armor, breaching, and anti-structure missions. Singapore's version emphasized confined-space firing, a HEAT/HESH selectable effect, and wall-breaching performance for built-up areas, while Dynamit Nobel Defence's RGW 90 line includes dual-mode, anti-structure, long-range multipurpose, smoke, illumination, and training variants. The system is documented in Singapore service, in Israeli Matador WB use during the 2008 Gaza War, in German-funded RGW 90 deliveries to Ukraine, and in Israeli use during urban fighting in Gaza after October 2023.

Sources

Shoulder-Launched MunitionsPublisher: U.S. Army Capability Program Executive Ammunition & Energetics | Note: Identifies the M136 AT4 as a U.S. Army light anti-tank recoilless weapon and summarizes its role and 84 mm HEAT warhead. | Accessed: 2026-06-29AT4 FamilyPublisher: Saab | Note: Manufacturer product page supporting AT4 family background, disposable shoulder-fired design, range classes, and production scale. | Accessed: 2026-06-29The U.S. Army and the AT4: An Enduring Partnership, Never Taken for GrantedPublisher: Saab | Note: Supports M136 development context, U.S. Army adoption, and Saab's AT4 deliveries to the U.S. military. | Accessed: 2026-06-29Saab's Individual Assault MunitionPublisher: Saab | Note: Supports AT4CS family designation meanings and directly supports 1990 Gulf War conflict use by stating that U.S. forces used AT4 in real-world combat from Desert Storm onward, including a Desert Storm tank-kill account with AT4 munitions. | Accessed: 2026-06-29M136 AT4Publisher: Federation of American Scientists | Note: Legacy technical reference for M136 dimensions, weight, caliber, range, muzzle velocity, penetration, and manufacturer data. | Accessed: 2026-06-29Fact Sheet on U.S. Security Assistance for Ukraine (Roll Up) as of April 21, 2022Publisher: U.S. Department of Defense | Note: Direct 2014 Russia-Ukraine War conflict-use source: the United States provided 6,000 AT-4 anti-armor systems to Ukraine in the March 2022 security assistance package. | Accessed: 2026-06-29Biden Administration Announces Additional Security Assistance for UkrainePublisher: U.S. Department of Defense | Note: Direct 2014 Russia-Ukraine War conflict-use source: the United States supplied additional Javelin and AT-4 anti-armor systems to Ukraine in August 2024 security assistance. | Accessed: 2026-06-29In Contact! Case Studies from the Long War, Volume IPublisher: Army University Press | Note: Direct 2003 Iraq War conflict-use source: describes Iraq urban combat in which U.S. forces and Iraqi soldiers used M136 AT4 antitank fire against enemy positions. | Accessed: 2026-06-29ISOF Arms & Equipment Part 4 - Grenade Launchers & Anti-Armour WeaponsPublisher: Armament Research Services | Note: Supports 2014 War Against the Islamic State direct conflict use under Operation Inherent Resolve: Direct 2014 Operation Inherent Resolve conflict-use source: documents Iraqi Special Operations Forces using U.S.-supplied 84 mm AT4 recoilless weapons during combat in Mosul. | Accessed: 2026-06-29Department of Defense Press Briefing by Col. Warren via Teleconference from Baghdad, IraqPublisher: U.S. Department of Defense | Note: Supports 2014 War Against the Islamic State direct conflict use under Operation Inherent Resolve: Direct 2014 Operation Inherent Resolve conflict-use source: 2014 Operation Inherent Resolve spokesman described coalition-trained Iraqi soldiers firing AT-4s and noted their effectiveness against enemy truck bombs. | Accessed: 2026-06-29Operation Branding Iron IIPublisher: Defense Visual Information Distribution Service | Note: Direct 2001 War in Afghanistan conflict-use source: caption identifies a U.S. Marine preparing to fire an M136 AT4 at enemy fighters during Operation Branding Iron II. | Accessed: 2026-06-29Calculable Losses? Arms and Ammunition in AfghanistanPublisher: Small Arms Survey | Note: Direct 2001 War in Afghanistan conflict-use source: identifies M136 AT4 84 mm portable anti-tank rocket systems as supplied to or exported to Afghanistan for the Afghan government during the 2001 War in Afghanistan. | Accessed: 2026-06-29M136 AT4 Light Anti-tank WeaponPublisher: Wikimedia Commons | Note: Image provenance and licensing page for the primary image; identifies the file as a U.S. Air Force public-domain work. | Accessed: 2026-06-29M136 AT4 In ActionPublisher: Wikimedia Commons | Note: Image provenance and licensing page for the secondary gallery image; identifies the source file as a U.S. Army public-domain work. | Accessed: 2026-06-29