Instructables
Picture of Knex Machine Gun
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Hi, this is my knex machine gun, (although its technically a chain gun). It has very long range for a machine gun but is inaccurate as the chain swings. If you don have this exact motor it is very easy to modify this gun to take a different one. Thanks to knex21, from whom I modified this larger and more powerful version of his chain gun.

Pros:
Very long range (30 ft aprox)
Simple to make
Reasonably comfortable to hold

Cons:
Chain requires lots of pieces
Inaccurate   
terickson38 months ago

post how to build it plz

terickson38 months ago

plz post how to build it

gardman31 year ago
You know those crank knex machine guns?Just put a trigger in place of the crank and you have a smg that fires in bursts.
Nice, but if you have more pieces I would suggest to make the body look stronger and more filled up. The chain looks great!