Name/Title
M2 0.5 Cal; Browning Machine gun (Replica)Description
The term "0.5 Cal Browning machine gun" most likely refers to the M2 Browning machine gun, which is chambered in .50 BMG (12.7x99mm NATO). It's a heavy machine gun designed by John Browning and has been in service with the US military and NATO forces since the 1920.
The cartridge used by the M2 Browning is .50 Browning Machine Gun (BMG), also known as 12.7x99mm NATO