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 Medium Alt Build Medium Builds Spyrius Spyrius Alternate Builds

6939 – Back C

February 5, 2023February 13, 2023 Master Builder 6551 Views

From: 6939: Saucer Centurion
Name: Spyrius L-wing ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on February 5, 2023 by: Valdis

← 6939 – Back B
6973 – Back A →

You May Also Like

4750 – Back A

May 16, 2023May 16, 2023 Master Builder

1682 – Inside A

July 25, 2024July 25, 2024 Master Builder

6673: Solo Trainer

November 18, 2020November 18, 2020 Master Builder

7782 – Instructions A

March 27, 2026March 27, 2026 Master Builder

6734 – Back A

April 7, 2026April 7, 2026 Master Builder

4720 – Back C

July 9, 2024July 9, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Exploriens Exploriens Sets Medium Builds Official Sets Space

6899: Nebula Outpost

January 25, 2022September 13, 2024 Master Builder

Year Released: 1996BricklinkInstructions

Large Builds Model Team Model Team Sets Official Sets

5510: Off Road 4×4

February 10, 2026February 10, 2026 Master Builder

Classic Town Gas Station Medium Builds Official Sets Town Town Sets Wrecker

6562: Gas Stop Shop

September 19, 2022September 19, 2022 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4591: Star Strike

February 21, 2025February 21, 2025 Master Builder

Medium Builds Official Sets Western Western Sets

6764: Sheriff’s Lock-Up

September 1, 2024September 1, 2024 Master Builder

Construction LEGOLAND Medium Builds Official Sets

730: Steam Shovel with Carrier

February 21, 2024February 21, 2024 Master Builder

Castle Castle Sets Forestmen Lion Knights Official Sets Small Builds

6055: Prisoner Convoy

May 20, 2021October 1, 2024 Master Builder

ABCs Insectoids Insectoids Sets Official Sets Space Very Small Builds

6817: Beta Buzzer

June 1, 2022March 22, 2025 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5550: Custom Rally Van

February 9, 2026March 4, 2026 Master Builder

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

4708: Hogwarts Express

July 13, 2021August 8, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6871: Star Patrol Launcher

September 27, 2019September 30, 2019 Master Builder

Futron Sets Futuron Official Sets Small Builds Space

6828: Twin-Winged Spoiler

November 20, 2019May 25, 2020 Master Builder

Large Builds Official Sets Res-Q Town Town Sets

6473: Res-Q Hovercraft

January 20, 2022January 20, 2022 Master Builder

ABCs Exo-Force Medium Builds Official Sets

7701: Grand Titan

March 26, 2026March 26, 2026 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6483: Coastal Patrol

December 29, 2021December 29, 2021 Master Builder

Official Sets Racers Radio Control Small Builds

8675: Outdoor Challenger

July 15, 2024July 15, 2024 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.