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 Futuron Futuron Alternate Builds Instructions Added Small Alt Build Small Builds Space

6850 – Back A

September 24, 2019March 14, 2025 Master Builder 3235 Views

From: 6850: Auxiliary Patroller
Name: Auxiliary Dart ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF, and .io file submitted on May 20, 2020 by: Mr.AstonishedRaccoon

← 6956 – Back C
6850 – Back B →

You May Also Like

6641 – Back A

May 7, 2022May 7, 2022 Master Builder

6844: Seismologic Vehicle (Sismobile)

October 22, 2019September 10, 2023 Master Builder

194 – Back D

October 4, 2019November 18, 2021 Master Builder

6021 – Back B

September 25, 2024September 25, 2024 Master Builder

6394 – Back B

February 17, 2023May 19, 2023 Master Builder

6815 – Back A

July 11, 2022August 7, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Space Classic Space Sets Large Builds Official Sets

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

Year Released: 1981Bricklink

Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds

897: Mobile Missile Command

September 14, 2019July 31, 2023 Master Builder

Box Marketing Blurb Large Builds Official Sets Space Space Police I Space Police I Sets

6955: Space Lock-Up Isolation Base

February 3, 2021April 3, 2024 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

1490: Town Bank

January 23, 2024January 23, 2024 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6341: Gas N’ Go Flyer

December 27, 2021December 27, 2021 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6780: XT-Starship

October 12, 2021September 9, 2024 Master Builder

Box Marketing Blurb Large Builds Official Sets Samsonite Samsonite Sets

375: Deluxe Basic Set

September 11, 2023April 3, 2024 Master Builder

Bonus/Value Pack Sets Futron Sets Futuron Official Sets Small Builds Space

1974-4: Star Quest

September 7, 2023September 8, 2023 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6672: Safari Off-Road Vehicle

January 28, 2022January 28, 2022 Master Builder

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

6208: B-wing Fighter

January 27, 2024January 27, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder

Classic Town Large Builds Official Sets Recreation Town Town Sets

6552: Rocky River Retreat

July 15, 2022July 15, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6804: Surface Rover

September 25, 2019September 28, 2019 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6501: Sport Convertible

July 8, 2022July 8, 2022 Master Builder

Official Sets Race Town Town Sets Very Small Builds

6604: Formula-1 Racer

November 25, 2020November 25, 2020 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
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.