How do you make a complicated, fully automatic pen gun that fires BB's?
But at my disposal are a few HBW pens and no available nor acquirable Bic pens which are wide enough for BB's. I know how to widen HBW pens for BB's but then it's labor intensive. I need another solution.
And by the way, people keep talking about loading up a pen with a gravity feed then blowing as hard as I can through the input hole 2, and BB's would spray out the business end. It appears everything here is too simple, so title changed! Don't give me the previous described method.