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## Overview The Iranian-designed 358 loitering munition, also known as the SA-67, is a counter-drone interceptor that has reportedly achieved significant success against high-value US-made unmanned aerial vehicles during the US-Israel-Iran war (SCMP, April 2026). The weapon has attracted attention in China and elsewhere for its cost-asymmetric effectiveness. ## Technical Profile The 358 missile weighs approximately 50kg (110 lbs) and is powered by a small jet engine (SCMP, April 2026). It is designed to loiter in a target area and intercept UAVs. It has been described as a "drone-killing" system capable of targeting expensive platforms at a fraction of their cost. ## Reported Battlefield Performance Chinese state media has highlighted the weapon's reported role in bringing down multiple US-made drones, including the MQ-9 Reaper, during the US-Israel-Iran conflict (SCMP, April 2026). The MQ-9 costs approximately $30 million per unit, making the cost exchange ratio highly favorable for the Iranian side if the reported kills are accurate. ## Strategic Implications The 358's reported effectiveness against expensive US platforms has generated analysis in China about lessons applicable to potential Taiwan or South China Sea conflict scenarios (SCMP, April 2026). The weapon illustrates a broader trend: low-cost autonomous or semi-autonomous systems defeating high-cost legacy platforms. This asymmetric dynamic is being studied by military analysts globally as it challenges traditional cost-benefit models for air defense and drone deployment. ## Watching Brief - Independent verification of MQ-9 and other UAV kill claims - Spread of 358 or derivative technology to other state or non-state actors - US and allied development of counter-loitering-interceptor measures - Chinese development of analogous systems for Taiwan conflict scenarios - Arms export implications if Iran markets the system internationally