Cartridge monitoring and display system for a firearm
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United States of America Patent
Stats
-
Apr 9, 1991
Grant Date -
N/A
app pub date -
Dec 29, 1989
filing date -
Dec 29, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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