The MT-LB with 82-mm automatic mortar 2B9 Vasilek is a field fire-support conversion that places the Soviet clip-fed 2B9 or 2B9M automatic mortar on the rear deck of the MT-LB tracked armored carrier. General technical sources document the 2B9's rapid four-round clip feed and the MT-LB's recurring use as a carrier for heavy infantry weapons, while Russian equipment-loss documentation from Ukraine records destroyed and damaged examples of this specific MT-LB/Vasilek configuration.
Oryx's visually documented Russian loss list for the full-scale invasion records two MT-LB vehicles fitted with 82 mm automatic mortar 2B9 Vasilek, one destroyed and one damaged, tying this field conversion to Russian-side use in Ukraine.
The public sources describe a recurring mounting pattern rather than a single factory-standard vehicle. The record therefore treats the MT-LB/Vasilek as a field conversion, including the Ukraine-documented version and the separately observed UB-32 rocket-pod combination.
| Variant | Configuration | Designation notes |
|---|---|---|
| MT-LB with 2B9 Vasilek | Tracked automatic mortar carrier | Oryx records two Russian MT-LB vehicles fitted with the 82 mm 2B9 Vasilek in Ukraine, while WeaponSystems.net notes that the 2B9 has been observed mounted on top of MT-LB tracked armored personnel carriers. Sources: Oryx Russian Equipment Losses In Ukraine, 82mm 2B9 Vasilek |
| MT-LB with UB-32 rocket pod and 2B9 Vasilek mortar | Hybrid rocket and mortar conversion | Oryx's list of Russian Army equipment not yet destroyed in Ukraine separately identified an MT-LB with a UB-32 rocket pod and 2B9 Vasilek mortar, showing a more heavily improvised branch of the same carrier-and-mortar pattern. |
This conversion combines two cataloged Soviet systems: the MT-LB tracked armored carrier and the 82 mm 2B9 Vasilek automatic mortar.
| Compatible item | Item type | Compatibility evidence |
|---|---|---|
 | Tracked armored carrier chassis | The MT-LB provides the light armored tracked platform; WeaponSystems.net describes it as a multipurpose chassis used for heavy infantry weapons, including 82 mm 2B9 Vasilek mortar mounts. Sources: MT-LB |
 | 82 mm automatic mortar | The mounted weapon is the 2B9 or 2B9M Vasilek automatic mortar, a clip-fed 82 mm system that ARES and WeaponSystems.net describe with direct- and indirect-fire modes. Sources: Soviet 2B9M Vasilek self-loading mortar, 82mm 2B9 Vasilek |
The MT-LB/Vasilek record is narrower than the parent 2B9 mortar page. It covers the vehicle-mounted arrangement in which a 2B9-family automatic mortar is installed on an MT-LB hull rather than carried by the normal truck or towed on its carriage.
The 2B9M can fire from four-round clips and can be used in direct or indirect fire, giving the conversion a high short-burst rate of fire for an 82 mm mortar.
Sources: Soviet 2B9M Vasilek self-loading mortar; 82mm 2B9 Vasilek.
The MT-LB adds tracked mobility, light armor, amphibious capability, and room for crew or ammunition, all useful for shoot-and-move mortar work.
Source: MT-LB.
The strongest direct conflict record currently documents Russian losses, not a factory designation or a complete production series.
Source: Oryx Russian Equipment Losses In Ukraine.
ARES traces development of the 2B9 from the late 1960s and identifies 1970 as the year the Soviet Army adopted the automatic mortar.
Sources: Soviet 2B9M Vasilek self-loading mortar
ARES describes the 2B9M as the air-cooled modernization introduced after Hungarian modifications and adopted in 1983.
Sources: Soviet 2B9M Vasilek self-loading mortar
Oryx listed an MT-LB with UB-32 rocket pod and 2B9 Vasilek mortar among Russian equipment types still awaiting a documented destruction at the time.
Sources: Oryx Russian Army Equipment Not Yet Destroyed
Oryx's running Russian equipment-loss list for Ukraine records two MT-LB vehicles with 82 mm 2B9 Vasilek automatic mortars, one destroyed and one damaged.
Sources: Oryx Russian Equipment Losses In Ukraine
