THE 2-MINUTE RULE FOR MPI GUN

 M60 on the deck of USS Theodore Roosevelt (CVN-71) in 2006. The initial variant was formally adopted from the U.S. Army in the late fifties, although at this time it had been only intended for that infantry. It had been generally known as the T161 ahead of it absolutely was adopted (precisely the T161E3) and was preferred about the competing T52