This is the first iteration of the ammunition indicator for the laser gun. Ten green LEDs indicate the percentage of ammunition left before reload is necessary. Every five pulls of the trigger button cause one LED to turn off resulting in a total of 50 shots per imaginary clip. I chose 50 after a some quick internet research on AK47 banana clips. It turns out they hold, you guessed it, 50 rounds. After all rounds are depleted, a press of the reload button turns the LEDs back on one at a time with a half second pause between each.
note: I had no buttons. Wires are used in their place, but pull down resistors are still present.