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AUSA 2024: US Army's new shoulder-launched AT4CS Tandem Warhead breaks cover

By Daniel Wasserbly |

Saab's shoulder-launched AT4CS TW at AUSA 2024 conference in Washington, DC. The system was selected for the army's IAM requirement. (Janes/Dan Wasserbly)

Saab showcased its shoulder-launched AT4 Confined Space Tandem Warhead (AT4CS TW) at the Association of the United States Army (AUSA) 2024 conference in Washington, DC, after being awarded the army's XM919 Individual Assault Munition (IAM) contract in August.

The service awarded Saab an indefinite delivery, indefinite quantity (IDIQ) contract on which the army could place up to USD494 million in orders over five years for the company's AT4CS TW (Confined Space Tandem Warhead).

In 2025 Saab and the army are slated to begin production tests, and by the end of 2025, the company expects its first production orders, Darrell Osteen, marketing and sales manager for Saab Land Systems, told Janes on 15 October at the conference. Deliveries could begin in 2026 or 2027, he added.

“Order values will be established individually when an order is placed under the IDIQ contract,” Saab said.

AT4CS TW weighs about 9 kg and has an effective range of 200 m, according to a Saab factsheet. It is designed to combine a tandem warhead with “the ability to fire in narrow positions or other confined spaces without harm to the operator or nearby individuals”.

The army's a long-planned effort to consolidate and update its shoulder-launched munitions (SLMs) ultimately culminated in a request for proposals (RFP) for the XM919 system in September 2023. The service's Project Manager Close Combat Systems's (PM CCS's) IAM system consists of the XM919 weapon and training devices such as the XM922 subcalibre trainer.

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