Airman 1st Class Vincent Cortorillo, left, and Senior Airman Braylyn Banks, center, 20th Security Forces Squadron entry controllers, fire a Browning M2 machine gun, while Staff Sgt. Robert Riley, right, 20th SFS combat arms instructor supervises at Poinsett Electronic Combat Range, near Wedgefield, S.C., April 19, 2019. Airmen assigned to the 20th SFS participated in a two-day course intended to teach them the history of the weapon, as well as proper firing etiquette. (U.S. Air Force photo by Senior Airman Christopher Maldonado)

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Photo by: Senior Airman Christopher Maldon |  VIRIN: 190419-F-MP604-9035.JPG