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Set 76307 Iron Man Mech vs. Ultron
Avengers

Iron Man Mech vs. Ultron

Iron Man Mech vs. Ultron is part of the LEGO® Marvel Super Heroes range, pitting Iron Man in a battle mech against the robotic villain Ultron. At 101 pieces with 2 minifigures, it's a compact duel ready to play with as soon as it's built.

Set number
76307
Year
2025
Pieces
101
Minifigures
2
Theme
Avengers
Different parts
42
What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 42

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Spare parts (5)

These extra parts come with the set in case one gets lost.

Minifigures 2

Alternative models

Fan models by Rebrickable users that you can build (mostly) from this set’s parts. Instructions are available from the designers.

All 3 ideas at Rebrickable ↗

What can I build with it?

Description

Armour versus robot

Iron Man Mech vs. Ultron is part of the LEGO® Marvel Super Heroes range and pits two tech-driven opponents against each other: Iron Man piloting a mobile mech, and Ultron as a standalone robotic figure. At 101 pieces, it's among the smallest sets in the range, putting everything into this single confrontation rather than any surrounding scenery. The 42 unique parts are enough to give the mech moving arms and familiar armour plating, while Ultron's angular, metallic build keeps him instantly recognisable as the opponent. For a quick, self-contained duel, the format works well.

Warm reds instead of cool metal

Dark red and pearl gold define the mech, echoing Iron Man's classic colour scheme, while dark bluish grey and dark tan give Ultron his metallic, earthy look. That combination makes hero and villain easy to tell apart at a glance. Unlike many other Marvel sets built around a straightforward red-and-blue palette, the pearl gold detailing here gives the small set a slightly more premium feel. The colour list on this page breaks every shade down individually, useful for finding a specific red or gold piece.

Forty-two parts in a very small set

With 42 unique parts across just 101 pieces, the proportion of specialised shapes is surprisingly high for such a small set. That shows most clearly in the mech's joints, which provide its range of movement, and in the detail pieces that build up Ultron's robotic structure. Despite the low overall piece count, the build ends up more varied than the numbers alone suggest. It's a good option for anyone short on time but still after genuine construction detail.

A duel you can play out anywhere

Two minifigures come with the set, turning the mech duel into a scene you can act out immediately without needing extra accessories. Its compact size makes it a natural add-on to larger Avengers sets, or a small extra for travel. The full parts list on this page catalogues all 42 elements individually, useful for tracking down a specific red or gold piece, or comparing this set against other mech duels in the range.

FAQ

How many pieces does Iron Man Mech vs. Ultron include?
Set 76307 contains 101 pieces across 42 unique parts, plus 2 minifigures.
What colours define the set?
Dark red and pearl gold define Iron Man's mech, while dark bluish grey and dark tan give Ultron his metallic look.
Does the mech move?
Yes, several joint pieces let the mech's arms be posed in different positions.

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