how can you make an knex gun automatic without the use of a motor, like a hand held machine gun? Answered
you have a gun that looks like a MG but only shoots once when you pull the trigger. how is it possible to make it completely automatic, without any type of motor or mechanism that you have to rotate around, like those two hand held ones. just pull the trigger and barrage of bullets come out. Many have tried and been close but not succeeded.