Firearm Ammunition Counting System With Calibration Electronics and Visual Audible and Haptic Display Methods

Abstract

Ammunition round counting systems are disclosed in which force-sensing elements mounted on a bending beam detect displacement of a magazine spring to determine the number of rounds remaining in a firearm magazine. In various embodiments, resistive strain elements arranged in half-bridge or full-bridge Wheatstone configurations measure bending of the beam when positioned at the follower or the baseplate. A microprocessor receives the amplified sensor signal, applies calibration values (optionally temperature-dependent), and computes a round count based on a stored calibration curve. The system may incorporate additional sensors for detecting empty-magazine, loaded-magazine, or discharge events. The calculated round count may be transmitted by wired or wireless communication to an external device for presentation to the user through visual, audible, or haptic feedback.

Dependencies are inferred from the claim text.