Professor Brainstein with Mech Suit (uagt034) Quick Facts
| BrickLink ID | uagt034 |
| Theme | Ultra Agents |
| Year Released | 2015 |
| Average Price (Used) | $91.00 |
| Average Price (New) | $110.54 |
| Price Range | $90.00 – $91.99 |
| Parts | 18 |
| Found In | 1 set |
About Professor Brainstein with Mech Suit
The LEGO Professor Brainstein with Mech Suit (uagt034) is a Ultra Agents minifigure worth $91.00 on average, released in 2015 and found in 1 set. It has 18 individual parts. The Ultra Agents theme average is $9.69, making this figure above average for its theme.
Professor Brainstein with Mech Suit (uagt034) is one of the higher-value LEGO Ultra Agents minifigures, selling for an average of $91.00 on BrickLink. It was exclusive to a single set — Ultrasonic Showdown (2015). That exclusivity is the main driver behind the price — once the set retired, the only way to get this figure was the secondary market.
Seller notes
- This figure alone is worth 77% of its source set (Ultrasonic Showdown, ~$118.22). If you find the set at retail or in a collection, the minifig is a significant chunk of the value.
- 18 parts including accessories. Double-check you have everything before listing — missing accessories (weapons, capes, helmets) will drop the price. Buyers on BrickLink expect complete figures.
Parts in Professor Brainstein with Mech Suit (18)


















Sets containing Professor Brainstein with Mech Suit (1)
Common questions about Professor Brainstein with Mech Suit
How much is LEGO uagt034 (Professor Brainstein with Mech Suit) worth in 2026?
The LEGO Professor Brainstein with Mech Suit (uagt034) is worth $91.00 used and $110.54 new/sealed on average, based on BrickLink sales data from the last 6 months. Prices range from $90.00 to $91.99 depending on condition. This is above the Ultra Agents theme average of $9.69. Completeness (all accessories included) and print condition are the biggest factors affecting price.
What sets include the Professor Brainstein with Mech Suit minifigure?
Professor Brainstein with Mech Suit appears in 1 set: Ultrasonic Showdown (70171-1, ~$118.22). Since it was only in one set, it can't be sourced elsewhere — that scarcity is reflected in the price.
How do I identify Professor Brainstein with Mech Suit?
Look for the BrickLink ID uagt034 — it's the definitive identifier for this figure. Professor Brainstein with Mech Suit is made up of 18 parts including specialized accessories. The parts breakdown on this page shows each component with colors. If you have a loose figure and aren't sure what it is, the brick'em scanner can identify it from a photo in a few seconds.
What's the best way to sell Professor Brainstein with Mech Suit?
At $91.00, this figure is worth listing individually on BrickLink where LEGO buyers specifically search by ID. Take clear photos showing all sides and accessories. BrickLink listings at or slightly below the 6-month average tend to sell within a week or two. eBay is a good secondary option if you want a wider audience, but expect slightly lower prices after fees.
Does condition matter for Professor Brainstein with Mech Suit?
At $91.00 average, yes. Buyers at this price point expect a complete figure with all accessories, no major scratches on printed elements, and tight joints. Minor play wear is generally acceptable, but cracked or heavily scratched torso prints will drop the price below average. If you have the figure new/sealed (averaging $110.54), keep it protected — the premium for mint condition is significant.

