Cartridge monitoring and display system for a firearm

Details Cartridge monitoring and display system for a firearm Cartridge monitoring and display system for a firearm

1989-12-29

1991-04-09

Jordan, Charles T.

Firearms

Indicators

Magazine shot

F41A 962

Patent

active

050053078

ABSTRACT:
A cartridge monitoring and display system for an automatic or semiautomatic firearm. A programmed microcontroller receives input signals form each of a slide switch and a magazine switch, which switches generate respective signals upon actuation of the firearm slide and upon insertion or withdrawal of a cartridge magazine. The microcontroller calculates the number of rounds remaining in the firearm and displays the number on an LCD display. A visible and audible warning is given when the cartridge count drops below a predetermined minimal level. The entire system is incorporated in a mounting strap which may be inserted between the frame and a hand grip of a conventional semiautomatic pistol.

REFERENCES:
patent: 3552053 (1971-01-01), Jarvis

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