LEGO 76307 Iron Man Mech vs. Ultron Building Instructions

LEGO 76307 Iron Man Mech vs. Ultron is a 2025 LEGO Marvel set from the Avengers range focused on the mech model. The details table below lists 101 pieces, 2 minifigures, an official MSRP of 12.99, along with the set number, theme and year.

About this LEGO instruction page

Watch the step-by-step LEGO instructions video for LEGO 76307 Iron Man Mech vs. Ultron. You can pause between steps, follow the build order, and use the related instruction links below to find more sets from the same theme.