Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- BATMAN™
- BIONICLE
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Instructions Added Large Alt Build Large Builds Star Wars Star Wars Alternate Builds

7140 – Back A

April 8, 2026April 18, 2026 Master Builder 3953 Views

From: 7140: X-wing Fighter
Name: Combat Robot ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on April 8, 2026 by: Manozoid.

← 6737 – Back B
7111 – Back A →

You May Also Like

6899 – Back B

February 5, 2023February 13, 2023 Master Builder

6872 – Back C

October 19, 2019April 21, 2026 Master Builder

1627 – Back D

May 2, 2023May 2, 2023 Master Builder

6368 – Back B

January 21, 2021January 21, 2021 Master Builder

6160: Sea Scorpion

October 29, 2019April 4, 2020 Master Builder

7725 – Inside A

October 14, 2022August 1, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Forestmen Official Sets Small Builds

1680: Hay Cart with Smugglers

August 12, 2024September 24, 2024 Master Builder

Year Released: 1990BricklinkInstructions *This set is the same as 1877: Crusader’s Cart which was available in 1675: Legoland Triple Pack.

Futron Sets Futuron Official Sets Small Builds Space

6828: Twin-Winged Spoiler

November 20, 2019May 25, 2020 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6940: Alien Moon Stalker

September 12, 2019September 12, 2024 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6273: Rock Island Refuge

July 4, 2024July 4, 2024 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7150: TIE Fighter & Y-wing

April 21, 2026April 21, 2026 Master Builder

Cowboys Medium Builds Official Sets Western Western Sets

6755: Sheriff’s Lock-Up

July 3, 2024February 18, 2025 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4720: Knockturn Alley

July 9, 2024July 9, 2024 Master Builder

Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone

4704: The Chamber of the Winged Keys

May 28, 2024May 28, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6234: Renegade’s Raft

May 23, 2022May 23, 2022 Master Builder

Basic Official Sets Small Builds Universal Building Set

510: Basic Building Set

July 11, 2024July 11, 2024 Master Builder

Medium Builds Official Sets Town Town Sets

6381: Motor Speedway

October 5, 2019February 19, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6874: Moon Rover

November 6, 2023November 6, 2023 Master Builder

Classic Town Harbor Official Sets Town Town Sets Very Small Builds Wrecker

1632: Motor Boat

July 25, 2024July 25, 2024 Master Builder

Classic Town Fire Official Sets Small Builds Town Town Sets

6643: Fire Truck

July 2, 2024July 2, 2024 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Exploriens Exploriens Sets Official Sets Small Builds Space UFO UFO Sets

UFO Value Pack (VP-5)

December 10, 2025March 14, 2026 Master Builder

Classic Town Fire Medium Builds Official Sets Town Town Sets

6358: Snorkel Squad

April 15, 2021April 15, 2021 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

Adventurers
Aquazone
BATMAN
Bionicle
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
Town
Universal Building Set
Western
More Sets
Misc

Useful Links

Submit Instructions!
New Instructions
New Official Sets
New Alternate Builds
Minifigs
Very Small Builds (<35 pcs)
Small Builds (<100 pcs)
Medium Builds (<200 pcs)
Large Builds (<400 pcs)
Extra Large Builds (>400 pcs)
How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.