between playing airsoft, and video games that have a round countdown screen on them. I got to thinking.
How hard would it be to mount a small screen on an airsoft rifle, a button on the mag well for a reset. If I always used say 45 round mags. simply replacing the mag restarts the counter, and it counts down the snaps from the gun firing.
I'm not sure what I would use for the counting device though. How would one internal sense the round going off. without picking up every noise around?
Any help? Has anyone seen this before maybe already? save me the work.