![](http://www.alamy.com/thumbs/6/7F7ED012-12AE-4210-9362-3FD185DACC70/P6AJ2G.jpg)
Ken Van Dyk, 531st Commodities Maintenance Squadron, puts the final torque on a 20 mm gun housing before it is to be test fired at Hill Air Force Base, Utah, May 25, 2016. ( Air Force photo by R. Nial Bradshaw)
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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -10, 20, 30, 531, afb, air, army, cmmxs, fire, firing, force, gatling, gun, hill, marines, mm, navy, oo-alc, overhaul, range, test