Fully Automatic Knex Gun Concept

Hi every one this is a new Knex gun concept that I made.  It is fully automatic and it shoots grey Knex.  This is not my idea. it was made by Louis XIV but i made it fully automatic.  It uses 6 rubber bands and it is compact.  

CONS shoots so fast and makes a mess, no  trigger 

PROS compact and fully automatic

If you have any ideas on how to make it better please tell me and show me pix of your remix if you want 

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