US Patent 11656047 Chamber flag

Disclosed is chamber flag for a firearm. In one example the chamber flag has a body portion extending along a central axis and a chamber portion extending axially from the body portion, where the chamber portion is sized and configured to be received in a chamber of the firearm. A flag portion extends from the flag body in a direction transverse to the central axis. An arm is connected to the body portion and extends circumferentially around a left side of the body portion in a radially spaced relationship with the body portion, where at least the arm is made of a flexible and resilient material.