Air Defense

9K31 Strela-1

Also known as
  • SA-9 Gaskin
  • 9P31 Strela-1
  • Strela-1
  • Strela-1M
  • 9K31M Strela-1M

The 9K31 Strela-1, NATO reporting name SA-9 Gaskin, is a Soviet BRDM-2-based short-range surface-to-air missile system armed with four ready-to-fire 9M31 or 9M31M missiles. Developed as a regimental low-altitude air-defense vehicle for motor-rifle and tank units, it combined an amphibious armored chassis with optical/infrared missile engagement at short ranges. Open sources document it in several conflict inventories, including Polisario systems supplied by Libya, Iraqi Gulf War air defenses, Chechen inherited stocks, and Houthi-aligned holdings in Yemen; those rows indicate fielding or possession, not necessarily a sourced launch or shootdown.

Role in Conflicts

Side
Polisario Front

A documented Polisario/SPLA air-defense inventory lists roughly three 9K31 Strela-1 / SA-9 systems received from Libya in the early 1980s, supporting a supplied-and-held conflict-use row without claiming a specific launch or shootdown.

Side
Iraq

CSIS reporting on Iraqi air defenses cites U.S. Department of Defense post-war estimates crediting Iraq with SA-9 systems and missiles at the outset of the Gulf War, supporting Iraqi fielding as part of the land-based air-defense network.

Role details

Oryx's First Chechen War equipment reconstruction says Chechen forces initially relied on conventional forces equipped with 9K31 Strela-1 systems inherited from Soviet troops stationed in Chechnya, supporting possession and fielding context rather than a documented firing.

Profile / Specs

Profile

Origin
Soviet Union
Type
Vehicle-mounted short-range surface-to-air missile system
Service note
Cold War design; limited continued service in modern conflicts
Designer
Nudelman OKB-16 design bureau
Designed
1960-1968
Produced
1968 onward

Specifications

Crew
3
Armament
Four ready-to-fire 9M31 or 9M31M infrared-guided surface-to-air missiles
Chassis
BRDM-2 4x4 amphibious armored vehicle
Engagement range
About 4.2 km effective range for 9M31 according to common reference data
Engagement altitude
Up to about 3 km
Weight
About 7.0 metric tons combat loaded
Mobility
Up to 100 km/h on road and amphibious water operation
Protection
Light steel armor against small-arms fire and shell splinters
Design And Employment Notes

The Strela-1 began as part of a lightweight air-defense requirement but matured into a BRDM-2-based regimental system. That shift matters because the vehicle could carry four ready missiles, move with motorized rifle and tank units, and accept a heavier missile than a shoulder-fired design.

Launcher identity

9P31 combat vehicle in the 9K31 Strela-1 system, known to NATO as SA-9 Gaskin.

Tactical role

Short-range, low-altitude cover for maneuver units rather than area air defense.

Ready load

Four 9M31 or 9M31M missiles carried in launch containers on the turret.

Sources: Missilery.info Arrow-1; ODIN 9K31 Strela-1; National Defence University of Ukraine Strela-1.

Variants

The launcher family is normally discussed as the baseline 9K31 Strela-1 / 9P31 vehicle and the improved Strela-1M standard, with Romanian TABC-79/CA-95 vehicles using the Strela-1 missile family on a local chassis.

VariantConfigurationDesignation notes
9K31M Strela-1MImproved launcher and missile family standard

The improved Strela-1M/9M31M family followed the baseline 9K31 after trials recommendations, with references distinguishing it as the improved SA-9B/Gaskin-Mod1 missile standard.

Sources: Missilery.info Arrow-1, Strela-1M

TABC-79 / CA-95Romanian local-chassis variant

Army Recognition identifies TABC-79 as the Romanian version, while operator references commonly describe the Romanian CA-95 as a locally produced Strela-1-family vehicle.

Sources: SA-9 Gaskin 9K31 Strela-1, Weaponsystems.net 9K31 Strela-1

Carried Munitions

The Strela-1 launcher family carried both the original 9M31 and the improved 9M31M missile.

Carried itemItem typeCarriage evidence
9M31 Strela-1, Infrared-guided surface-to-air missile for the 9K31 Strela-1 system, Munitions9M31 Strela-1Infrared-guided surface-to-air missile

The turret is documented with four ready-to-fire 9M31 missiles.

Sources: Weaponsystems.net 9K31 Strela-1

9M31M Strela-1M, Improved infrared-guided short-range surface-to-air missile, Munitions9M31M Strela-1MInfrared-guided surface-to-air missile

Reference sources identify the 9M31M as the improved Strela-1M missile variant associated with the launcher family.

Sources: Strela-1M

Timeline

9K31 Strela-1 Key Events

  1. Strela-1 development authorized

    Soviet development began under an August 1960 decree that initially sought a lightweight portable air-defense complex before the requirement shifted toward a self-propelled regimental system.

    Sources: Missilery.info Arrow-1

  2. 9K31 accepted into service

    Reference and museum sources identify 1968 as the service-adoption year for the Strela-1 / 9P31 vehicle-mounted air-defense system.

    Sources: Missilery.info Arrow-1, National Defence University of Ukraine Strela-1, SA-9 Gaskin 9K31 Strela-1

  3. Improved Strela-1M family follows

    The Strela-1M improvement package followed the original system after trials recommendations, with open references distinguishing the improved 9M31M missile from the baseline 9M31 round.

    Sources: Missilery.info Arrow-1, Strela-1M

  4. Yemeni inherited-stock context

    Open-source Houthi missile and air-defense inventories list Strela-1 systems among weapons inherited from pre-war Yemeni Army stocks during the conflict that began in 2014.

    Sources: Houthi Drone And Missile Handbook, Handbook Of Pre-War Yemeni Fighting Vehicles

Media
Related Weapon Systems
9K33 Osa, Short-range self-propelled surface-to-air missile system, Air DefenseAir Defense9K33 OsaShort-range self-propelled surface-to-air missile systemThe 9K33 Osa, NATO reporting name SA-8 Gecko, is a Soviet short-range self-propelled surface-to-air missile system that combines search radar, tracking radar, command guidance, and ready-to-fire missiles on a single amphibious 6x6 TELAR. Cataloged conflict records show the system across several generations of air-defense use: Syrian Osa-AK vehicles in Lebanon in 1982, Iraqi SA-8s in the Gulf War air-defense network, captured Georgian systems in 2008, rebel-held examples in Syria, Armenian and Ukrainian battlefield use, and Indian OSA-AK service during Operation Sindoor.

Sources