LEGO Technic 412503 Gyrocopter

LEGO Technic set 412503, “Gyrocopter”, depicts a small autogyro in the construction style associated with the Technic theme. Listed for 2025 with 63 pieces, it is a compact model focused on the shape and structure of this light aircraft.

“Gyrocopter” belongs to LEGO Technic, a theme built around visible structure, pin connections, axles and mechanical forms. The subject is an autogyro, a light aircraft type recognizable by its overhead rotor and compact body. Within Technic, this set sits closer to small vehicle models than to large, feature heavy builds.

The build can therefore be viewed as a concise Technic interpretation of the aircraft, using structural elements to suggest the rotor, fuselage and seating area.

The model is suited to Technic collectors who value small builds and to builders looking for a simple aircraft subject. It can be displayed easily alongside other Technic vehicles, where it adds an aviation example to a theme often associated with road vehicles, construction machines and mechanical models.

Inventory of set 412503

The inventory of set 412503 lists 63 pieces, spare parts excluded: 25 different lots (one shape in one color) for 25 part shapes.

Colors of set 412503

Main color: black, making up 25% of the parts, followed by light bluish gray (17%) and dark bluish gray (14%).

Part types

Most common parts in set 412503

25 of the 25 part shapes in this set have their own page on Setopedia, with their colors, element numbers and the other sets that use them. See all LEGO parts

No part in set 412503 is exclusive: each one is found in at least one other set, which makes replacing a lost element easier.

Rebuilding set 412503 from another set

Share of the parts of set 412503 found in each of these similarly sized sets, counting shape, colour and quantity:

No similarly sized set goes above 49%: the model relies on a little-shared assortment, most of which has to be gathered piece by piece.

Size of set 412503 within its line

With 63 pieces, set 412503 ranks #403 out of 443 Technic sets in our database, which have an average of 658 parts. Among the 625 sets released in 2025, it ranks #543. That is less than half the average Technic set size.