Skip to content
Back of the Box Builds

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
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Classic Town Instructions Added Police Town Town Alternate Builds Very Small Alt Build Very Small Builds 

6506 – Back B

November 22, 2025November 25, 2025 Master Builder 4346 Views

From: 6506: Precinct Cruiser
Name: Precinct Roadblock 1
Instructions: View PDF | Download .io File

Contributions

  1. Name, PDF and .io file submitted on November 20, 2025 by: Grossy29
  • ← 6613 – Back B
  • 6506 – Back C →

You May Also Like

6036 – Back A

June 14, 2026June 23, 2026 Master Builder

1736 (1746 and 2891): Wizard’s Cart

September 24, 2024October 8, 2024 Master Builder

6972 – Back D

September 15, 2019November 21, 2023 Master Builder

6345 – Back E

January 29, 2021September 15, 2022 Master Builder

6842 – Back B

October 21, 2019October 25, 2021 Master Builder

710 – Inside C

February 22, 2024February 22, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

8044: Universal Pneumatic Set
Medium Builds Official Sets Technic Technic Sets 

8044: Universal Pneumatic Set

August 23, 2024August 23, 2024 Master Builder

Year Released: 1989BricklinkInstructions

6355: Derby Trotter
Classic Town Medium Builds Official Sets Recreation Town Town Sets 

6355: Derby Trotter

December 28, 2021December 28, 2021 Master Builder
6953: Cosmic Laser Launcher
Bjarne Tveskov Futron Sets Futuron Medium Builds Official Sets Space 

6953: Cosmic Laser Launcher

February 3, 2021July 29, 2023 Master Builder
725-3: Town Plan
Large Builds Official Sets Samsonite Samsonite Sets Town Town Sets 

725-3: Town Plan

October 9, 2024October 9, 2024 Master Builder
4709: Hogwarts Castle
Extra Large Builds Harry Potter Harry Potter Sets Official Sets Sorcerer's Stone 

4709: Hogwarts Castle

April 16, 2021July 13, 2021 Master Builder
4479: TIE Bomber
Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets 

4479: TIE Bomber

January 6, 2025January 6, 2025 Master Builder
7704: Sonic Phantom
Exo-Force Medium Builds Official Sets 

7704: Sonic Phantom

April 28, 2023April 28, 2023 Master Builder
4735: Slytherin
Chamber of Secrets Harry Potter Harry Potter Sets Official Sets Small Builds 

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder
6848: Strategic Pursuer
Bjarne Tveskov Duplicate Set Number Futron Sets Futuron Official Sets Small Builds Space 

6848: Strategic Pursuer

April 16, 2021March 11, 2024 Master Builder
6100: Aquashark Dart
Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds 

6100: Aquashark Dart

March 20, 2023March 21, 2023 Master Builder
720: Basic Building Set
Basic Large Builds Official Sets Universal Building Set 

720: Basic Building Set

February 8, 2024February 9, 2024 Master Builder
6453: Com-Link Cruiser (Comlink Cruiser)
Official Sets Small Builds Space Port Town Town Sets 

6453: Com-Link Cruiser (Comlink Cruiser)

August 2, 2020July 14, 2021 Master Builder
4558: Metroliner
9V Extra Large Builds Official Sets Town Train Train Sets 

4558: Metroliner

August 11, 2026August 11, 2026 Master Builder
6893: Orion II Hyperspace
Futron Sets Futuron Medium Builds Official Sets 

6893: Orion II Hyperspace

September 25, 2019September 28, 2019 Master Builder
7708: Uplink
Exo-Force Official Sets Small Builds 

7708: Uplink

August 11, 2023August 11, 2023 Master Builder
6642: Police Helicopter
Classic Town Official Sets Police Small Builds Town Town Sets 

6642: Police Helicopter

April 8, 2020April 8, 2020 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
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.