How can I build a human-scale Lego gun?

Question

I would like to build Lego projectile weapons. Are there any designs available? Can one make an amunition magazine and self-reloading mechanism? Should I use rubberbands as ammunition or are there designs that fire Lego bricks?

You'll shoot your eye out! – Peter Cassetta Jan 29 '12 at 08:55 — Peter Cassetta, Jan 29 '12 at 08:55

score 14 · Accepted Answer · edited Dec 06 '18 at 10:26

There are some Books available that include building-instructions (i don't own one of these, but i would choose the most current):

The BrickGun Book (Book released in 2013, site has occasional updates as of December 2018 with more instructions)
Badass LEGO Guns (December 2010)
Weapons for LEGO Lovers (February 2009)
as Joubarc said the at least 4 years old Forbidden LEGO (July 2007)

to answer your question about magazines/reloading mechanisms: see this youtube-video that shows such a mechanism in detail (although it's a bit hard to perceive details).

in addition the book about LEGO Technic Simple Mechanics might also be interesting for you, if you want to try building a own gun instead of just "copying" from a detailed instruction.

There's a new one out: "The BrickGun book" - see this review on Brickset — Joubarc, May 23 '13 at 04:20

score 6 · Answer 2 · edited Feb 27 '13 at 16:36

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There is a book called "LEGO Heavy Weapons" by Jack Streat which is published by No Starch Press and can be bought for about £15 on Amazon.

edited Feb 27 '13 at 16:36

Ambo100

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answered Feb 27 '13 at 12:51

Olantigh

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score 6 · Answer 3 · answered Oct 27 '11 at 17:36

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The book "Forbidden LEGO" has some, and you may also want to check YouTube on the subject

answered Oct 27 '11 at 17:36

Joubarc

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I own this book and it's fairly outdated. The 9V 2-switch Battery box required to power the 'gun' is a rare find. It was last sold as part of the 4094 Motor Movers set in 2003 – Ambo100 Oct 27 '11 at 17:56
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It's also worth mentioning that the model required modified and non-Lego pieces so it wasn't fully brick-built. Youtube is a good place to look for inspiration. – Ambo100 Oct 27 '11 at 17:58

How can I build a human-scale Lego gun?

3 Answers3