Firearm magazine with round counting circuit
View Patent ↗A device for displaying the number of rounds remaining in a firearm magazine includes a digital counter with a voltage source. A voltage flows from the digital counter, through a magazine connection, and to a follower conductor in the magazine. The follower conductor contacts binary coded conductive strips, which return a binary representation of the number of rounds in the magazine to the digital counter.
1. A device for displaying a number indicating how many rounds are in a firearm magazine, the device comprising:
a digital counter comprising a voltage source;
a magazine connector electrically connected to the digital counter;
a source strip electrically connected to the magazine connector;
a plurality of binary coded strips arranged in parallel with respect to each other and electrically connected to the magazine connector; and
a follower conductor configured to contact the source strip and the plurality of binary coded strips, the follower conductor configured to be electrically connected to the source strip and the plurality of binary coded strips.