IRIS-T SLM (Infra Red Imaging System — Tail/Thrust Vector-Controlled, Surface Launched Medium Range) is a surface-to-air missile system developed by the German consortium Diehl BGT Defence in cooperation with NATO partners. In December 2005, the German Air Force adopted the IRIS-T air-to-air missile, equipped with an advanced infrared seeker. Later, under the MEADS programme, the IRIS-T SL variant was developed for ground-based launch. This version received a jettisonable nose cone to improve aerodynamics on long-range flights, a new larger-diameter rocket motor, and a navigation system featuring inertial guidance with GPS support and mid-course datalink correction.

In 2015, a short-range air-defence system based on the missile was created, and by 2022, testing of its modernised version — the IRIS-T SLM — was completed. Designed to counter air threats at medium range, the system has a modular structure and can be mounted on a MAN 8×8 wheeled chassis or deployed in a stationary configuration. A typical battery includes a Target Acquisition and Designation System (TADS) equipped with a surveillance and tracking radar, up to four Transporter Erector Launcher (TEL) vehicles carrying missiles, and several support vehicles.

The IRIS-T SLM was introduced in Update 2.47 “Leviathans”. It appears as a composite system consisting of a TADS and two TELs equipped with missiles. The launchers do not require separate research and can be used directly via the TADS in battle. The vehicles are equipped with IRIS-T SLM missiles, which feature an advanced guidance package combining IR + INS + datalink correction. These highly maneuverable missiles can track and engage targets at considerable distances. However, the system has weak fragmentation protection and a large silhouette. It cannot engage ground targets or operate if the TADS is destroyed.