DIY Full Auto Airsoft Rifle
GyverGun is Arduino based full-auto airsoft rifle made of very common components and materials. It is capable to shoot 2 steel 4.5 mm BB balls per second with muzzle energy of about 3 Joules. Compressed air is controlled by solenoid electromagnetic valve (truck horn), reloading mechanism is servo. G...By: Mad Gyver
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[original story: Instructables]