WHAT DOES STERLING MK4 9MM CARBINE MEAN?

 M60 within the deck of USS Theodore Roosevelt (CVN-71) in 2006. The initial variant was formally adopted from the U.S. Military inside the late nineteen fifties, though presently it had been only intended for the infantry. It was known as the T161 before it had been adopted (especially the T161E3) and was chosen more than the competing T52 all th