LEGO 70171 Ultrasonic Showdown

Released 2015 · 187 pieces · 2 minifigures · Agents · Ultra Agents

LEGO Ultrasonic Showdown (70171) was released in 2015 in the Agents · Ultra Agents line, with 187 pieces and 2 minifigures. It is one of the smaller Agents sets, larger than only 15% of them. It was one of 8 Agents sets released that year (see them all). Released in 2015, 11 years ago, well past the two-to-three-year run most LEGO sets get, so it is almost certainly out of production.

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• Estimated value: $34 (modelled from piece count, era, and age, not live market data)

Availability: Likely retired (inferred from its release year, not an official retirement date)

Full details, the price breakdown, and the minifigures included are below. Add it to your collection to track what it's worth.

• 18¢ per piece, about typical for Agents

Minifigures: Agent Curtis Bolt, Professor Brainstein with Mechanical Spider Legs

More from 2015

Set data from the Rebrickable database, refreshed daily. Catalog data as of 2026-09-01. Values are this site's estimates, see how they're calculated.

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