MMZ Avangard (Russian: Московский машиностроительный завод "Авангард") is a Moscow-based manufacturer and the sole supplier of missiles for the S-400 system.

[1] Avangard was established in 1942,[2] and it has produced airframes for strategic surface-to-air missiles since the 1950s and is the lead production facility for the Fakel Design Bureau in Moscow.

[3] In its latest available annual report for 2012, the company stated that it was finishing work on starting serial production of the 40N6 missile.

[1] In October 2012, the former director of the plant was arrested on charges of embezzlement, after being accused of signing consultancy contracts with shell companies.

In 1954 the company mastered the production of D1 type anti-aircraft missiles for the S-75 air defense system.