Middle East — 2026-06-07

Leaked Contracts Reveal Russia Supplying 327 Missiles to Iran for Su-35 Fighter Fleet Through 2027

BLUFContracted missile suites will likely reach Iran by late 2026, granting Tehran standoff strike and air superiority tools that reshape the threat calculus for U.S. and Israeli force posture.

UNITED24 Media on June 5 published leaked Russian defense contracts identifying Iran as codename "K10" and documenting 327 air-to-air and air-to-ground missiles contracted for delivery through 2027 123. The contracts name Perm Powder Plant and Machine-Building Design Bureau Iskra as suppliers of R-73 and R-77 air-to-air missiles and Kh-38 and Kh-31 strike variants, all tied to a broader Su-35 procurement program 12. The same documents show 16 Su-35s currently in production for Iran, fully prepaid, with payments recorded in March, July, and December 2024 2. Newsweek separately reported a Rostec document set attributed to the hacker group Black Mirror suggesting an expanded Iranian order of 48 Su-35s valued at $686 million, which neither government has confirmed 4.

Analysis
Contracted R-77 beyond-visual-range and Kh-31 anti-radiation missiles matter more than the airframe count: they would let Tehran contest air superiority and suppress US or Israeli ISR assets at standoff range. Iran's demonstrated inventory depletion in the June 7 Hormuz exchange raises the operational urgency of those deliveries. Russia will likely deliver at least one contracted missile batch by December 31, 2026. Full Iranian prepayment and documented supplier chains compress the incentive to slip. Low confidence attaches: the documents lack government authentication and corroborating technical collection. The UNITED24 sourcing admits a competing read: this could be a calibrated Ukrainian release designed to pressure Western governments into treating the program as more operationally mature than current collection supports. US CENTCOM and Israeli air planners should treat the Su-35 threat as active planning material before year-end, not at the 2027 horizon.
4 sources
  1. Russia Supplying Iran With Air-to-Air Missiles Through 2027, Leaked Documents - UNITED24 Media
  2. Leaked Contracts Reveal Russia Supplying Air-to-Air and Strike Missiles to Iran for Su-35 Fighter Fleet Through 2027 - The Defense News
  3. Russia has sold Iran more than 300 air-to-air missiles for potential Su-35s - UA.NEWS
  4. Leak reveals Russia's fighter jet deal with Iran - Newsweek

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