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Step 1: Unfortunately
Just like my other instructable (my first one) www.instructable.com/id/Semi-auto-lego-gun/ I'm going to have to make another download on digital designer until im more experienced with instructables.com.
Step 2: Loading....
put in the little bar and attach a rubber band to it. Thats it.
Step 3: Shooting....
Pull the bar back, put in a bullet, let go!