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
- Train
- 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 5924 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

Book 6000 – Page 42-43

February 7, 2022March 15, 2022 Master Builder

6505 – Back C

July 8, 2022July 8, 2022 Master Builder

1628 – Back A

November 25, 2020July 25, 2024 Master Builder

4705 – Back B

June 12, 2024June 17, 2024 Master Builder

6385 – Inside C

August 7, 2022August 7, 2022 Master Builder

6593 – Back E

February 9, 2022July 20, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Medium Builds Official Sets Paradisa Town Town Sets

6404: Carriage Ride

January 6, 2025January 6, 2025 Master Builder

Year Released: 1996BricklinkInstructions

Official Sets Space Port Town Town Sets Very Small Builds

6452: Mini Rocket Launcher

October 3, 2024October 3, 2024 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6931: FX-Star Patroller

January 12, 2021March 20, 2025 Master Builder

Extra Large Builds Official Sets Pirates Pirates I Pirates Sets

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6351: Surf N’ Sail Camper

July 14, 2021July 14, 2021 Master Builder

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

6209: Slave I (2nd edition)

February 1, 2024February 1, 2024 Master Builder

Episode II Extra Large Builds Official Sets Star Wars Star Wars Sets

4482: AT-TE

April 9, 2020April 9, 2020 Master Builder

Castle Castle Sets Forestmen Medium Builds Niels Milan Pedersen Official Sets

6054: Forestmen’s Hideout

April 10, 2021July 29, 2023 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

Hospital LEGOLAND Medium Builds Official Sets

780: Road Construction Set

February 14, 2024February 14, 2024 Master Builder

Official Sets Outback Small Builds Town Town Sets

6487: Mountain Rescue

July 25, 2022July 25, 2022 Master Builder

LEGOLAND Medium Builds Official Sets Space

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder

ABCs Jørn Thomsen Medium Builds Official Sets Spyrius Spyrius Sets

6939: Saucer Centurion

November 9, 2019October 1, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder

Bjarne Tveskov Extra Large Builds Official Sets Space Space Police I Space Police I Sets

6986: Mission Commander

April 3, 2022July 29, 2023 Master Builder

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

4708: Hogwarts Express

July 13, 2021August 8, 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
Train
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.