Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- 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
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Instructions Added Small Alt Build Small Builds Space Space Police II Space Police II Alternate Builds

6852 – Back A

September 22, 2020October 25, 2021 Master Builder 4143 Views

From: 6852: Sonar Security
Name: Probing Protector ¹
Instructions: View PDF | PDF (Photo Sequence) ² | Download .io File

Contributions

Name, PDF, and .io file submitted on July 17, 2021 by: IceAge2002
PDF (Photo Sequence) submitted on September 20, 2020 by: Dru Betts

← 6852: Sonar Security
6852 – Back B →

You May Also Like

6506 – Back B

July 12, 2021July 12, 2021 Master Builder

4702: The Final Challenge

August 8, 2024August 8, 2024 Master Builder

6679 – Back B

February 9, 2022March 15, 2022 Master Builder

6518 – Back B

May 23, 2022May 23, 2022 Master Builder

6641 – Back E

May 7, 2022May 7, 2022 Master Builder

6755 – Back C

July 30, 2024August 8, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Large Builds Official Sets Recreation Town Town Sets

6563: Gator Landing

July 20, 2022July 20, 2022 Master Builder

Year Released: 1996BricklinkInstructions

Jørn Thomsen Official Sets Space Spyrius Spyrius Sets Very Small Builds

1954 (1714, Kabaya: Space 1): Surveillance Scooter

January 26, 2022February 25, 2025 Master Builder

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

6594: Gas Transit

November 19, 2020July 8, 2025 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Very Small Builds

1555: Santa Claus Polybag

April 28, 2023April 28, 2023 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6931: FX-Star Patroller

January 12, 2021March 20, 2025 Master Builder

Medium Builds Official Sets Super Model Technic Technic Alternate Builds Technic Sets

120270: The Great Technic Racer

March 8, 2025March 8, 2025 Master Builder

Large Builds Official Sets Race Town Town Sets

6713: Grip-n-Go Challenge

February 10, 2025February 10, 2025 Master Builder

ABCs Official Sets Small Builds Space UFO UFO Sets

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder

Castle Castle Sets Knights Kingdom I Official Sets Small Builds

4818: Dragon Rider

October 8, 2024October 8, 2024 Master Builder

Classic Town Official Sets Recreation Town Town Sets Very Small Builds

6534: Beach Bandit

July 8, 2022July 8, 2022 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

1817: Sea Plane with Hut and Boat

January 12, 2022January 12, 2022 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6384: Police Station

December 28, 2021December 28, 2021 Master Builder

Imperial Guards Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6247: Bounty Boat

May 10, 2022May 10, 2022 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1978: Build-A-Santa Polybag

April 28, 2023April 28, 2023 Master Builder

Adventurers Adventurers Sets Dino Island Official Sets Small Builds

5920: Island Racer

July 26, 2020July 26, 2020 Master Builder

Castle Castle Sets Dragon Knights Medium Builds Official Sets

6076: Dark Dragon’s Den

December 27, 2021December 27, 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
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 © 2025 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.