Rare 1973 M16 U.S.G.I. Firing Pin Protrusion Gauge
This video showcases a rare 1973 M16 U.S.G.I. Firing Pin Protrusion Gauge, highlighting an early 1970s design. The focus is on a specific tool used for the M16 rifle platform, emphasizing its historical significance and collectibility within the firearms community. The item is presented as a piece of military hardware from a particular era.






