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

6852 – Back A

September 22, 2020October 25, 2021 Master Builder 5301 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

4940: Granite Grinder

April 4, 2020April 4, 2020 Master Builder

6208 – Back B

October 6, 2024October 8, 2024 Master Builder

375-2 – Back D

November 8, 2019September 5, 2025 Master Builder

6856 – Back C

January 9, 2023January 10, 2023 Master Builder

6373 – Back C

February 14, 2023February 18, 2023 Master Builder

1720: Cactus Canyon Value Pack

April 14, 2026April 14, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

Airport Classic Town Medium Builds Official Sets Town Town Sets

3439: Spy Runner

May 11, 2022May 11, 2022 Master Builder

Year Released: 2000BricklinkInstructions

Indians Official Sets Very Small Builds Western Western Sets

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder

Daniel August Krentz Imperial Soldiers Medium Builds Official Sets Pirates Pirates I Pirates Sets

6267: Lagoon Lock-Up

October 11, 2021July 29, 2023 Master Builder

Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker

6679: Dark Shark

December 28, 2021December 28, 2021 Master Builder

Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6237: Pirates’ Plunder

February 8, 2022February 8, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6384: Police Station

December 28, 2021December 28, 2021 Master Builder

ABCs Large Builds Official Sets Space Spyrius Spyrius Sets

6949: Robo-Guardian

October 23, 2019August 15, 2023 Master Builder

Bonus/Value Pack Alternate Builds Castle Castle Alternate Builds Instructions Added Official Sets Royal Knights Small Alt Build Small Builds Space Spyrius Spyrius Alternate Builds

1843 – Side L

January 22, 2021March 14, 2025 Master Builder

Large Builds Official Sets Technic Technic Sets

8000: Pit Droid

September 11, 2023September 11, 2023 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Very Small Builds

4920: Rapid Rider

March 1, 2023March 1, 2023 Master Builder

Classic Town Fire Official Sets Town Town Sets Very Small Builds

6611: Fire Chief’s Car

February 20, 2024February 20, 2024 Master Builder

Medium Builds Official Sets Technic Technic Sets

8044: Universal Pneumatic Set

August 23, 2024August 23, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6803: Space Patrol

September 21, 2019February 15, 2026 Master Builder

ABCs Futron Sets Futuron Large Builds Official Sets Space

6932: Stardefender 200

September 24, 2019August 15, 2023 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.