Apparatus and method for preventing the bolt carrier of a firearm from moving forward after firing the last round of ammunition, and signaling when the firearm has run out of ammunition.

摘要

The invention is designed to be fitted into the AK47-type semiautomatic firearms to provide a missing but vital feature of locking the reciprocating bolt assembly of said firearm after having chambered, fired and ejected the last cartridge from its removable magazine. The invention is designed to be installed into the receiver portion of the firearm as well as incorporating a modification into the removable magazine housing and follower. The invention consists of a number of components that will work in cooperation with each other to provide the above desired feature.