The M14 rifle is an American selective fire automatic rifle chambered in 7.62 x 51mm NATO. It was the standard issue U.S. rifle from 1959 to 1970 until replaced by the M16 rifle in 1970. It remains in limited front line service with the United States Army, Marine Corps, Navy, Air Force, and Coast Guard, and remains in use as a ceremonial weapon. It was the last so-called "battle rifle", and also provides the basis for the M21 and M25 sniper rifles.
The M1A SOCOM is a civilian model semi-auto M14 with a 16 inch barrel made available to the public in the US. It is the replica of this that Airsoft emulates with its own SOCOM equivalents even though in Airsoft our SOCOM weapons maintain full M14 status as they are the same select fire automative weapons albeit AEG representations.