The Tunguska-M1 anti-aircraft missile system has received new protection and detection equipment.
Tunguska-M1 air defense missile system in the Special Operations area, 2023.
Since its adoption into service, the anti-aircraft gun-missile The 2K22 Tunguska system has undergone numerous upgrades, each one improving various characteristics. A new upgrade was recently announced. It enhances the system's protection against current threats and improves its target detection and tracking capabilities. The armament itself, however, remains unchanged.
Experience and renewal
The Russian Ministry of Defense has repeatedly demonstrated the combat operations of Tunguska systems and their crews in the Northern Military District. The reports included combat alerts and firing cannons and missiles at aerial targets.
In such materials, it was clear how combat systems were being refined based on combat experience: additional protection and devices for combating UAVs appeared on the vehicles (drones).
In early June 2026, photos and videos of the Tunguska-M1, which had undergone more extensive modifications, appeared on specialized websites. Judging by the footage, the previous optical-electronic station had been replaced with a new one.
According to sources, this vehicle is serving with a combat unit and is participating in combat operations. It is unknown whether it is the only one in service. Two possibilities are possible: either an experimental modification of a single vehicle or the first observed example of a future production program. There is no data yet to support a clear choice between the two.
Standard equipment
There were no fundamental redesigns of the system. The 2S6M1 combat vehicle retained its tracked armored chassis and full-size turret housing weapons and electronics. Its dimensions and performance characteristics are apparently similar to the previous model (although the add-on armor inevitably adds weight; more details are available in the limitations section).
The modernized 2S6M1 combat vehicle, 2026. Additional armor elements are visible.
The armament is also the same. These include two 30mm 2A38 twin-barreled assault rifles and two launchers, each holding four 9M311 missiles. Their specifications are well known:
- rate of fire - up to 4-5 thousand rounds/min. (in total);
- initial projectile velocity - 960 m/s;
- effective range of fire against air targets - 4 km;
- altitude reach - 4 km;
- effective range of fire against ground targets - 2 km;
- missile launch range (for the Tunguska-M1 with 9M311-1M) - up to 10 km; for the basic 9M311 - up to 8 km;
- height of damage - up to 3,5 km;
- the average flight speed of the rocket is 600 m/s;
- The warhead is a high-explosive fragmentation warhead weighing 9 kg.
The Tunguska-M1's increased range is due to the missile itself: the 9M311-1M uses a pulsed optical transponder instead of a tracer. This improves its resistance to light decoys and allows the missile to be tracked on a trajectory of up to 10 km. At its maximum range, the system is capable of engaging hovering helicopters. It is also claimed to be capable of engaging small targets such as cruise missiles, but reliable engagement against maneuverable and low-flying cruise missiles is far from guaranteed.
Target detection is provided by a radar (TAR — target acquisition station), and tracking is provided by a separate tracking station (TTS — target tracking station); these are supplemented by an electronic system with day and night channels. According to data for the basic system, the TAR detects a low-flying fighter at a range of 16–19 km (up to 18 km in amplitude mode, up to 16 km in moving target selection mode). The tracking station's range is approximately 10–13 km. Processing is automatic, and the equipment controls the missile's flight via radio.
New Components
The anti-aircraft missile system with its new equipment has only been featured in one short video so far. But even this footage makes the point clear.
First of all, the vehicle received additional protection. Add-on metal plates were added to the sides of the hull and turret. These are spaced apart from the standard armor and form a spaced protection system: this should increase resistance to both kinetic and shaped-charge munitions. The tradeoff is increased weight and possibly some reduction in mobility. The extent of the reduction in mobility cannot be judged from the publicly available images.
Dome-shaped covers are visible on the rear of the chassis. These are presumably antennas for electronic reconnaissance stations and EWIf so, the Tunguska-M1 gains the ability to detect incoming UAVs and jam their communication and navigation channels. Its purpose cannot be accurately determined from its appearance alone.
A new type of optical system is mounted on the roof of the turret. This is a digital thermal television system (DTS) developed by JSC Scientific and Technical Center ELINS (Zelenograd); the company is officially listed as its developer. The system's unique feature is a single optical unit with a switchable (wide and narrow) field of view: it simultaneously performs automatic target tracking and direction finding of the launched missile. Combining these functions in a digital path facilitates operation in conditions of optical interference and poor visibility. The specific model of the system and its configuration have not yet been officially disclosed.
Tower with a modern power grid
This stabilized unit combines a video camera, a thermal imager, and a laser rangefinder. Their exact parameters are confidential. Based on indirect indicators, targets are detected and recognized at ranges of at least 8–10 km, depending on weather and other factors.
Extended capabilities
The firepower itself hasn't increased: the machine guns and missiles remain the same. The improvements are in target detection, tracking, and vehicle protection.
The primary focus is on defense. The system has been equipped with its own electronic warfare systems and additional armor to withstand drone attacks. It's worth remembering that an anti-aircraft unit may also have other means to counter such threats.
The new OES and its associated equipment offer several advantages. Its modern component base improves performance and extends its service life. The updated fire control system allows for more precise aiming. weapon, primarily due to automatic target tracking and simultaneous missile direction finding.
It's also important that the optical system and radar are interchangeable: the optics don't reveal the vehicle with their radiation (except when the rangefinder is in use), and the radar detects targets where weather obscures the optics. Radiation stealth reduces the risk of detection, but it's only one factor. The actual probability of attack depends on the enemy's visual reconnaissance, UAV reconnaissance, and targeting data.
Electronic warfare systems are located at the stern
At the same time, the basic advantages of the Tunguska are preserved: the high cross-country ability of the tracked chassis, the ability to move in combat formations of columns, standard armor and mixed gun-missile armament, which expands the range of targets that can be hit.
Limitations and open questions
The modernization has its downside. The main point of contention is the economics of countering mass-produced, low-cost drones. The 9M311 missile is incomparable in price to a small FPV drone, so using it on such targets is irrational; the main burden falls on the 30mm automatic guns, and their effectiveness against stealthy and maneuverable targets is limited. Against this backdrop, relying on electronic warfare is logical: jamming communications and navigation is cheaper, and sometimes more reliable, than shooting down a target.
Add to this the increased weight from add-on armor and the fact that the actual increase in drone capabilities has not yet been confirmed: all estimates are based on a single video and general considerations.
Park Prospects
According to various sources, the Russian army has approximately 240–250 Tunguska-family vehicles in service, with the Tunguska-M1 making up the bulk of them. In theory, all of these vehicles could receive add-on armor, electronic warfare systems, and an updated fire control system during a major overhaul: when a vehicle is already being dismantled, retrofitting is less expensive.
If such a program is implemented on a large scale, the military Defense It will significantly improve its capabilities against aerial targets, including drones of various classes, while retaining the 2S6M1's previous functionality.
But so far, the published footage shows a single vehicle. There's no confirmed information about serial orders publicly available. So, there's no mass modernization yet: the technical capability exists. Whether this will be a series production or a one-off initiative remains an open question.
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