Anduril Industries

Steelfin

In Development

A family of modular two-stage surface-to-air interceptors with a common terminal-stage airframe, avionics and flight controls and a first-stage booster configurable for range, performance and launchers including PAC-3, CAML, Typhoon and containerized canisters. Anduril pitches it against cruise, ballistic and hypersonic threats and as a lower-cost alternative to PAC-3 MSE. Ballistic tests with representative air vehicles are complete; flight tests are planned in 2027. No production contract has been disclosed.

Latest update Oct 12, 2026

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Current status

Unveiled Oct. 12, 2026. Company says short-term output is on the order of several thousand variants a year, with full-rate production targeted end of 2028 or early 2029. Anduril declined to say whether Steelfin was selected for the Army Future Interceptor program.

  1. Anduril unveils Steelfin interceptor family

    Anduril on Oct. 12, 2026 introduced Steelfin, a modular two-stage surface-to-air interceptor family meant to cover cruise, ballistic and hypersonic threats from existing launchers. The company said ballistic tests with representative air vehicles are complete, flight tests begin next year, and short-term output is on the order of several thousand variants a year. Executives told Breaking Defense they aim for about one-third the cost of PAC-3 MSE and full-rate production around late 2028 or early 2029; Anduril declined to say whether Steelfin was selected for the Army Future Interceptor program.

    www.anduril.com breakingdefense.com www.investing.com

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