Meraj-521

Meraj-521 overview

The Meraj-521 is an Iranian loitering munition positioned in Iran's inventory between the small Qasef-k and the larger Shahed-136 — filling a medium-range, medium-payload niche that the Shahed series is too large and expensive for in every tactical scenario. Its 200 km range and 30 kg warhead make it suitable for strikes against hardened targets like command posts, radar sites, and armored vehicles that require more explosive effect than small loitering munitions can provide, while its smaller footprint compared to the Shahed-136 allows it to be transported and launched by smaller logistics elements without the significant ground support equipment that large drone operations require.

The strategic significance of the Meraj-521 lies primarily in its role within Iran's proxy supply network. Iran has systematically equipped Houthi forces in Yemen, Hezbollah in Lebanon, and various Iraqi militia groups with loitering munitions for use against regional adversaries — primarily Saudi Arabia, the UAE, Israel, and U.S. military assets. The Meraj-521 is specifically optimized for this export role: compact enough to be transported disassembled in civilian cargo, simple enough to be operated by proxy forces with minimal training, and capable enough to pose genuine threats to the naval shipping and infrastructure targets that these groups prioritize. Houthi attacks on Red Sea shipping in 2023-2026 included Meraj-521 units alongside Shahed derivatives and cruise missiles.

The proliferation of Meraj-521 units through Iran's proxy network prompted significant Western intelligence focus on the platform's component supply chain and transportation routes. UN Panel of Experts reports documented Meraj-521 components and wreckage in Yemen and Iraq, providing evidence of Iranian supply that Iran officially denied. Western navies intercepting weapons shipments in the Arabian Sea and Gulf of Aden seized Meraj-521 units on multiple occasions through 2025-2026, though the scale of Iran's supply operations consistently outpaced interdiction efforts.

Armament

30 kg blast-fragmentation or shaped-charge warhead; GPS/INS guidance

Development and operational timeline

1. Jun 2020Meraj-521 development begins as medium-range loitering munition for export and proxy supply
2. Apr 2021Prototype testing completed; 200 km range and precision guidance validated
3. Jan 2022Meraj-521 enters Iranian inventory and begins transfer to Houthi forces in Yemen
4. Jul 2022First confirmed Meraj-521 use in Houthi attacks against Saudi infrastructure
5. Feb 2023UN Panel of Experts documents Meraj-521 wreckage in Yemen; confirms Iranian origin
6. Sep 2023U.S. Navy intercepts Meraj-521 units on vessels bound for Houthi forces in Arabian Sea
7. Mar 2024Meraj-521 used in Red Sea shipping attacks; several merchant vessels damaged
8. Oct 2024Hezbollah stocks of Meraj-521 confirmed by Israeli intelligence; Lebanon deployment noted
9. May 2025Upgraded Meraj-521M with improved seeker reportedly in production; anti-ship terminal guidance tested
10. Nov 2025Meraj-521 cited in IAEA and UN proliferation reports as key component of Iran proxy strike network
11. Apr 2026Meraj-521 continues in active Houthi use; Western warships conduct intercepts and point defense engagements