Keywords: m240b machine gun m240bmachinegun 673rd security forces squadron 673rdsecurityforcessquadron live fire livefire joint base elmendorf-richardson jointbaseelmendorfrichardson alaska united states unitedstates us outdoor Strips of 7.62x51mm ball ammunition are staged for M240B machine gun live fire training at Grezelka range, Joint Base Elmendorf-Richardson, Alaska, Oct. 27, 2016. Airmen assigned to the 673rd Security Forces Squadron fired M240B machine guns to hone their proficiency. The M240B is a belt-fed, air-cooled, gas-operated, fully automatic medium machine gun with a 950 round per minute maximum rate of fire. (U.S. Air Force photo/Alejandro Pena) Strips of 7.62x51mm ball ammunition are staged for M240B machine gun live fire training at Grezelka range, Joint Base Elmendorf-Richardson, Alaska, Oct. 27, 2016. Airmen assigned to the 673rd Security Forces Squadron fired M240B machine guns to hone their proficiency. The M240B is a belt-fed, air-cooled, gas-operated, fully automatic medium machine gun with a 950 round per minute maximum rate of fire. (U.S. Air Force photo/Alejandro Pena) |