Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • Building Set with People
    • Castle
    • Duplo
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Ninja
    • Pirates
    • Rock Raiders
    • Space
    • Star Wars
    • Studios
    • Technic
    • Time Cruisers
    • Town
    • Universal Building Set
    • Western
    • Misc
  • USEFUL LINKS
    • Contribute!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • About
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Extra Large Builds Unitron Unitron Alternate Builds 

6991 – Back B

September 28, 2019September 28, 2019 Master Builder 1322 Views

From: 6991: Monorail Transport Base
Name: TBD
Submitted by: USER
Instructions

  • ← 6991 – Back A
  • 6991 – Back C →

You May Also Like

6970 – Back C

January 20, 2021October 25, 2021 Master Builder

6090 – Back C

July 13, 2021July 13, 2021 Master Builder

6067 – Back B

February 9, 2021February 9, 2021 Master Builder

6047 – Back B

November 18, 2021November 18, 2021 Master Builder

6598 – Back A

January 6, 2022January 6, 2022 Master Builder

6895 – Back B

February 10, 2022March 17, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

6596: Wave Master
Classic Town Harbor Medium Builds Official Sets Town Town Sets Wrecker 

6596: Wave Master

September 15, 2022September 15, 2022 Master Builder

Year Released: 1995BricklinkInstructions

6872: Xenon X-Craft
Classic Space Classic Space Sets Official Sets Small Builds 

6872: Xenon X-Craft

October 19, 2019October 19, 2019 Master Builder
6956: Stellar Recon Voyager
Large Builds M:Tron M:Tron Sets Official Sets Space 

6956: Stellar Recon Voyager

September 23, 2019November 19, 2020 Master Builder
6672: Safari Off-Road Vehicle
Classic Town Off-Road Official Sets Small Builds Town Town Sets 

6672: Safari Off-Road Vehicle

January 28, 2022January 28, 2022 Master Builder
6836: V-Wing Fighter
Official Sets Small Builds UFO UFO Sets 

6836: V-Wing Fighter

October 24, 2019October 24, 2019 Master Builder
6841: Mineral Detector
Classic Space Classic Space Sets Official Sets Very Small Builds 

6841: Mineral Detector

October 3, 2019October 3, 2019 Master Builder
1877: Crusader’s Cart
Castle Castle Sets Forestmen Official Sets Small Builds 

1877: Crusader’s Cart

October 11, 2021October 11, 2021 Master Builder
6533: Police 4×4
Classic Town Official Sets Police Small Builds Town Town Sets 

6533: Police 4×4

January 6, 2022January 6, 2022 Master Builder
1896: Trauma Team
Classic Town Hospital Large Builds Official Sets Town Town Sets 

1896: Trauma Team

April 4, 2022April 4, 2022 Master Builder
6195: Neptune Discovery Lab
Aquanauts Aquazone Aquazone Sets Extra Large Builds Official Sets 

6195: Neptune Discovery Lab

January 20, 2022January 20, 2022 Master Builder
6884: Aero-Module
Futron Sets Futuron Official Sets Small Builds 

6884: Aero-Module

September 24, 2019September 28, 2019 Master Builder
6071: Forestmen’s Crossing
Castle Castle Sets Forestmen Medium Builds Official Sets 

6071: Forestmen’s Crossing

October 23, 2019April 4, 2020 Master Builder
6274: Caribbean Clipper
Imperial Soldiers Large Builds Official Sets Pirates Pirates I Pirates Sets 

6274: Caribbean Clipper

February 8, 2022February 8, 2022 Master Builder
6986: Mission Commander
Extra Large Builds Official Sets Space Space Police I Space Police I Sets 

6986: Mission Commander

April 3, 2022April 3, 2022 Master Builder
6392: Airport
Airport Classic Town Extra Large Builds Official Sets Town Town Sets 

6392: Airport

June 28, 2022June 28, 2022 Master Builder
6881: Lunar Rocket Launcher
Classic Space Classic Space Sets Official Sets Small Builds 

6881: Lunar Rocket Launcher

October 2, 2019October 2, 2019 Master Builder

BUILD!

MINIFIGS

About This Site

Logo
There were once pictures of additional builds on the back of LEGO® boxes. On the box was, "Build any of these exciting models with this set." There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Ninja
  • Pirates
  • Rock Raiders
  • Space
  • Star Wars
  • Studio
  • Technic
  • Time Cruisers
  • Town
  • Universal Building Set
  • Western
  • Misc

Useful Links

  • Contribute!
  • 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)
  • About

In Honor of 1526

The classic space set that never was.

Copyright © 2023 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.