Infantry Weapons

9K111 Fagot

Also known as
  • AT-4 Spigot
  • AT-4A Spigot
  • AT-4B Spigot
  • AT-4C Spigot
  • 9M111
  • 9M111M
  • Fagot-M
  • 9P135

The 9K111 Fagot, known to NATO as the AT-4 Spigot, is a Soviet man-portable SACLOS wire-guided anti-tank missile system built around the 9P135 tripod launcher and 9M111 missile family. Its reusable launcher, later 9P135M compatibility with the 9M113 Konkurs, and 2 to 2.5 km range kept it relevant for legacy users, with documented appearances from Ukraine to Gaza and Karabakh.

9K111 Fagot, Man-portable anti-tank guided missile system, Infantry Weapons
Image source: AT-4 Fagot on display.jpg

Role in Conflicts

2020 Nagorno-Karabakh Conflict
Role in conflict
Defensive anti-armor missile launcher

Azerbaijan's Ministry of Defense listed three Fagot launchers among weapons seized in the Karabakh region after the September 2023 operation to disarm local Armenian/Artsakh armed formations.

2014 Russia-Ukraine War
Anti-Armor

Russian forces have fielded AT-4 Spigot / 9K111 Fagot systems in mobile anti-tank units during the full-scale invasion, while Ukrainian forces are also documented using 9K111 and 9K111M Fagot missiles among their anti-tank weapons.

Role details
Profile / Specs

Profile

Origin
Soviet Union
Type
Man-portable anti-tank guided missile system
Service note
Cold War design, still in service with legacy operators during the 2014 Russia-Ukraine War
Designer
Tula KBP
Designed
Early 1960s
Produced
1970s onward

Specifications

Guidance
SACLOS wire guidance
Launcher
Reusable 9P135 tripod/manpack launcher, with later 9P135M compatibility for 9M113 Konkurs
Range
75 m to 2.0 km for 9M111; up to 2.5 km for later 9M111M/Fagot-M variants
Missile diameter
120 mm
Warhead
Single HEAT warhead on 9M111/9M111-2; improved Fagot-M variant listed with higher penetration
Launch container weight
About 13 kg with missile and launch container, depending on variant
Missile and Launcher Structure

The family combines disposable missile launch containers with reusable 9P135-series firing posts, so missile designations and launcher compatibility are separate parts of the system.

ElementCatalog roleDocumented distinction
9M111 and 9M111-2Fagot missilesEarly SACLOS wire-guided 120 mm anti-tank missiles for the Fagot launcher family, listed with roughly 75 m to 2 km range.
9M111M Fagot-MLater missileImproved family member listed with about 2.5 km maximum range and higher penetration than earlier single-HEAT variants.
9P135 and 9P135MReusable firing postsThe later 9P135M firing post is documented as compatible with both Fagot-family missiles and the larger 9M113 Konkurs missile.
Variants

The Fagot family is commonly separated by missile designation and NATO AT-4 Spigot suffix, while the reusable 9P135-series launcher remains central to the system.

VariantConfigurationDesignation notes
9M111 Fagot / AT-4A SpigotBaseline missile

Early 120 mm SACLOS wire-guided missile for the 9P135 launcher family, listed with a 75 m to 2 km engagement range.

Sources: 9K111 Fagot

9M111-2 Fagot / AT-4B SpigotImproved missile

WeaponSystems.net treats the 9M111-2 as an improved Fagot missile with the same general launcher family and anti-armor role.

Sources: 9K111 Fagot

9M111M Fagot-M / AT-4C Spigot CExtended-range Fagot-M missile

Later Fagot-M family missile, listed with increased maximum range of about 2.5 km and improved penetration over earlier single-HEAT rounds.

Sources: 9K111 Fagot, 9K111 Fagot/AT-4 Spigot, Anti-tank guided missile launcher

Missile Compatibility

The Fagot missile family is tied to reusable tripod firing posts, and later launcher upgrades widened missile compatibility.

Compatible itemItem typeCompatibility evidence
9M113 Konkurs, SACLOS wire-guided anti-tank guided missile, Infantry Weapons9M113 Konkurs9P135M-compatible anti-tank missile

Army Guide describes the 9P135M firing post as able to fire 9M113 Konkurs missiles alongside the Fagot family.

Sources: 9K111 Fagot/AT-4 Spigot, Anti-tank guided missile launcher

Vehicle Mounts

Open references also tie the system to several armored and soft-skin carriers used as launch platforms.

Compatible itemItem typeCompatibility evidence
BMP-1, Infantry fighting vehicle, Armored VehiclesBMP-1Infantry fighting vehicle mount

Army Guide lists BMP-1P as one of the armored vehicle applications for the Fagot launcher family.

Sources: 9K111 Fagot/AT-4 Spigot, Anti-tank guided missile launcher

BMD-1, Airborne amphibious infantry fighting vehicle, Armored VehiclesBMD-1Airborne fighting vehicle mount

Army Guide lists BMD-1P as another armored vehicle application for the Fagot launcher family.

Sources: 9K111 Fagot/AT-4 Spigot, Anti-tank guided missile launcher

Launch Platforms
LauncherLauncher typeLaunch evidence
BMD-2, Airborne infantry fighting vehicle, Armored VehiclesBMD-2Airborne infantry fighting vehicle

WeaponSystems.net identifies the BMD-2 as a launch platform that can fire the 9M111 Fagot missile family.

Sources: Weaponsystems.net BMD-2

BMP-2, Tracked amphibious infantry fighting vehicle, Armored VehiclesBMP-2Mechanized infantry combat vehicle

The 9K111 Fagot page describes the 9P135M launcher as able to fire 9M111 Fagot missiles, matching the BMP-2's roof-mounted missile launcher.

Sources: 9K111 Fagot

Timeline

9K111 Fagot Key Events

  1. Early development

    Development began at Tula KBP in the early 1960s.

    Sources: 9K111 Fagot, 9K111 Fagot/AT-4 Spigot, Anti-tank guided missile launcher

  2. Operational service

    Army Guide places the system's entry into operational service in 1973.

    Sources: 9K111 Fagot/AT-4 Spigot, Anti-tank guided missile launcher

  3. Karabakh seizures

    Azerbaijan said three Fagot launchers were seized in Karabakh after the September 2023 operation.

    Sources: Military equipment, weapons and ammunition seized until 23.09.2023 in the Karabakh region

  4. Khan Yunis missile find

    IDF commandos reported finding a 9K111 Fagot missile in Khan Yunis during February 2024 operations against Hamas.

    Sources: Commando Forces Locate Missiles and Means for Underground Combat

Media

9K111 Fagot Videos

Related Weapon Systems
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Tosan anti-tank guided missile, Wire-guided SACLOS anti-tank guided missile, Infantry WeaponsInfantry WeaponsTosan anti-tank guided missileWire-guided SACLOS anti-tank guided missileThe Tosan anti-tank guided missile is an Iranian wire-guided SACLOS anti-armor weapon in the 9M113 Konkurs lineage. Iran Press describes it as an Iranian reverse-engineered Konkurs-derived system used from ground and vehicle launchers, while Iran Watch links Tosan-1 production to the Aerospace Industries Organization. Conflict documentation ties Towsan-1 to Hezbollah's 2006 anti-armor inventory and Tosan missiles to Houthi-linked arms-flow and stockpile evidence in Yemen.
9K115 Metis, Man-portable anti-tank guided missile system, Infantry WeaponsInfantry Weapons9K115 MetisMan-portable anti-tank guided missile systemThe 9K115 Metis is a Soviet/Russian man-portable, wire-guided anti-tank guided missile family developed for company-level infantry anti-armor fire. The original AT-7 Saxhorn used a lightweight launcher and 94 mm missile for short-range engagements, while the Metis-M and Metis-M1 upgrades moved to larger 130 mm missiles with tandem HEAT and thermobaric options. Its documented conflict use spans Russian and Ukrainian Metis-M fielding in Ukraine, Houthi use in Yemen, Syrian rebel use, and Hezbollah's anti-tank missile threat in the 2006 Lebanon War.

Sources

9K111 Fagot (AT-4 Spigot) Russian Anti-Tank Guided Missile (ATGM)Publisher: U.S. Army ODIN Worldwide Equipment Guide | Note: Supports general system background for the man-portable Fagot / AT-4 Spigot anti-tank guided missile system. | Accessed: 2026-06-209K111 FagotPublisher: WeaponSystems.net | Note: Supports origin, guidance method, variant range, dimensions, warhead, and related specifications. | Accessed: 2026-06-209K111 Fagot/AT-4 Spigot, Anti-tank guided missile launcherPublisher: Army Guide | Note: Supports the 1973 service entry, launcher family, 9P135M compatibility, vehicle-mount use, and later Fagot range/variant context. | Accessed: 2026-06-24Weaponsystems.net BMD-2Publisher: WeaponSystems.net | Note: Supports the BMD-2 launch-platform relationship for the 9M111 Fagot missile family. | Accessed: 2026-06-28New Russian highly mobile anti-tank units using an all-terrain type vehicle fight Ukrainian tanksPublisher: Army Recognition | Note: Directly supports 2014 Russia-Ukraine War context for Russian units fielding AT-4 Spigot / 9K111 Fagot anti-tank guided missile systems. | Accessed: 2026-06-20Military equipment, weapons and ammunition seized until 23.09.2023 in the Karabakh regionPublisher: Ministry of Defense of the Republic of Azerbaijan | Note: Directly documents the Karabakh conflict-use claim by listing three Fagot launchers seized in the Karabakh region after local anti-terror measures. | Accessed: 2026-06-24Analysis: Discover the use of anti-tank weapons by Ukrainian soldiers to destroy Russian tanksPublisher: Army Recognition | Note: Directly supports 2014 Russia-Ukraine War context for Ukrainian forces using 9K111 and 9K111M Fagot anti-tank weapons. | Accessed: 2026-06-20Military equipment, weapons and ammunition seized in the Karabakh region - LIST - VIDEOPublisher: Ministry of Defense of the Republic of Azerbaijan | Note: Directly supports 2020 Nagorno-Karabakh Conflict context for Fagot launchers fielded by Armenian/Artsakh armed formations and seized by Azerbaijani forces in the Karabakh region after the September 2023 operation. | Accessed: 2026-06-20Seven Years of War: Documenting Syrian Rebel Use of Anti-Tank Guided MissilesPublisher: Bellingcat | Note: Directly supports 2011 Syrian Civil War context for rebel use and supply of 9K111 Fagot / AT-4 Spigot anti-tank guided missiles. | Accessed: 2026-06-20Commando Forces Locate Missiles and Means for Underground CombatPublisher: Israel Defense Forces | Note: Directly supports 2023 Israel-Hamas War context by reporting that IDF commandos located a 9K111 Fagot missile in Khan Yunis during February 2024 operations against Hamas. | Accessed: 2026-06-30Al Jazeera Mubasher Fagot and Malyutka Khan YunisPublisher: Al Jazeera Mubasher | Note: Directly supports 2023 Israel-Hamas War context by reporting Al-Quds Brigades footage and claims that fighters used Fagot and Malyutka weapons against Israeli forces in northern Khan Yunis on June 23, 2025. | Accessed: 2026-07-03AT-4 Fagot on display.jpgPublisher: Wikimedia Commons | Note: Image provenance and licensing source for the primary 9K111 Fagot image; file page lists CC BY-SA 4.0 licensing. | Accessed: 2026-06-20Al-Quds Brigades Fagot ATGM 2022.jpgPublisher: Wikimedia Commons | Note: Image provenance and licensing source for the gallery image of an Al-Quds Brigades Fagot anti-tank guided missile in Gaza; file page lists Creative Commons attribution licensing. | Accessed: 2026-06-30