The MT-LBu with 57 mm S-60 is a Russian wartime field conversion that mounts a Soviet AZP S-60 anti-aircraft gun on the longer MT-LBu tracked chassis. It belongs to the wider MT-LB/S-60 conversion pattern seen in recent wars, but visually documented Russia-Ukraine War evidence specifically distinguishes an MT-LBu-based 57 mm AZP S-60 vehicle destroyed in 2024.
Russian forces fielded MT-LB-family vehicles carrying 57 mm AZP S-60 anti-aircraft guns during the full-scale invasion; Oryx's Russian loss list documents destroyed MT-LB/S-60 conversions, while a separate Oryx equipment-tracking page distinguishes an MT-LBu with 57 mm AZP S-60 AA gun as first destroyed in April 2024.
The MT-LBu/S-60 conversion is best read as a battlefield adaptation of two older systems: a larger tracked utility chassis and a towed 57 mm anti-aircraft gun. The chassis supplies cross-country movement and a deck for the weapon, while the gun gives the vehicle a heavier shell and longer reach than common 23 mm improvised mounts.
The MT-LBu is longer and taller than the baseline MT-LB, with seven road wheels per side and space originally intended for command, radar, artillery-control, or other specialist bodies.
The AZP S-60 is a 57 mm automatic anti-aircraft gun adopted in Soviet service in 1950; wartime vehicle mounts trade the normal towed layout for mobile direct fire and improvised air-defense use.
Open sources clearly document Russian MT-LB-family S-60 conversions and separately identify an MT-LBu/S-60 loss, but they do not establish a formal production designation or builder for the conversion.
Public sources describe a family of improvised MT-LB and MT-LBu vehicles carrying the 57 mm AZP S-60 gun rather than a standardized factory self-propelled anti-aircraft gun.
| Variant | Configuration | Designation notes |
|---|---|---|
| MT-LBu with 57 mm AZP S-60 AA gun | Longer tracked chassis conversion | Oryx's Russia equipment-loss tracking distinguishes an MT-LBu fitted with a 57 mm AZP S-60 AA gun from shorter MT-LB conversions and marks the first example as destroyed in April 2024. Sources: Oryx Russian Equipment Not Yet Destroyed In Ukraine |
| MT-LB with 57 mm AZP S-60 AA gun | Shorter MT-LB-family conversion | Oryx's Russian loss list documents MT-LB vehicles with AZP S-60 guns destroyed in Ukraine, while Nagorno-Karabakh loss records and open-license imagery show Armenian/Artsakh MT-LB/S-60 conversions displayed among captured war materiel. Sources: Oryx Russian Equipment Losses In Ukraine, The Fight For Nagorno-Karabakh: Documenting Losses On The Sides Of Armenia And Azerbaijan, Oryx Russian Equipment Not Yet Destroyed In Ukraine, File:AZP S-60, mounted on MT-LB in Military Trophy Park (Baku).jpg |
| Training and exercise examples | Russian training vehicles | The Armourers Bench reported S-60-armed MT-LBs seen in Russian training footage and described their typical use as direct fire-support vehicles against ground targets. |
The conversion combines an enlarged MT-LB-family chassis with the towed Soviet S-60 gun, creating a mobile but improvised 57 mm firing platform.
| Compatible item | Item type | Compatibility evidence |
|---|---|---|
 | Tracked carrier family | The MT-LBu is a longer MT-LB-family chassis with seven road wheels per side and more internal volume for specialist equipment; recent sources document both MT-LB and MT-LBu hulls adapted with 57 mm S-60 guns. Sources: MT-LBu Technical Data, Oryx Russian Equipment Not Yet Destroyed In Ukraine |
 | 57 mm automatic anti-aircraft gun | The mounted weapon is the Soviet AZP S-60 57 mm anti-aircraft gun, whose high-volume fire makes it useful for both low-altitude air-defense attempts and ground fire support when placed on a tracked vehicle. Sources: 57 mm AZP S-60, More Russian and Ukrainian MT-LB Adaptations |
The AZP-57 gun entered Soviet service as part of the S-60 57 mm anti-aircraft gun system.
Sources: 57 mm AZP S-60
The MT-LBu enlarged the MT-LB family into a longer, higher, unarmed tracked platform for command, radar, artillery, and other specialist roles.
Sources: MT-LBu Technical Data
The Armourers Bench described Russian S-60-armed MT-LB adaptations seen in training footage and characterized the vehicles as mostly direct fire-support conversions.
Sources: More Russian and Ukrainian MT-LB Adaptations
Oryx's Russia equipment-loss tracking recorded the first destroyed MT-LBu with 57 mm AZP S-60 AA gun in Ukraine.
Sources: Oryx Russian Equipment Not Yet Destroyed In Ukraine
