I am new to this forum, i found it by looking for a 555 timer mod (which i found an amazing tut on this site) and i built that. It worked but not aswell as I would like. Maybe i screwed up but either way i wanted to learn more about the programmable chips people use to make a rapid fire mod. If anyone has any links for info/tuts on these it would be greatly appreciated to link them to me, thanks a lot ahead of time.