Patent ID: 9395129
Filing Date: 2016-07-19
CPC Classification: F41A

Claim Text:
1. A light emitting magazine indicator, comprising: a spring-loaded follower engaging a stack of cartridges in a magazine adapted to serially supply cartridges from said stack of cartridges to a firearm, said spring-loaded follower having one of a plurality of positions in said magazine corresponding to a number of said cartridges remaining in said stack of cartridges; a gaseous tritium light source connected to said spring-loaded follower, said gaseous tritium light source persistently emitting an amount of light in low light conditions without an energy source external to said magazine, said gaseous tritium light source positioned in relation to said spring loaded follower to emit said amount of light incident upon an internal surface of said magazine to provide a persistent visual indicator on said external surface of said magazine, said persistent visual indicator moving in response to said spring-loaded follower to each one of said plurality of positions of said spring-loaded follower in said magazine to indicate said cartridges remaining in said stack of cartridges contained in said magazine.