The last documented use of the type was by the US National Guard against striking miners in the Battle of Blair Mountain, West Virginia, U.S., in 1921. A contemporary photo illustrates a Colt–Browning gun with one of the aforementioned finned aluminum heat-sink outfitted barrel from the Marlin-Rockwell firm, in the hands of a guardsman supporting sheriff's deputies. The presence of the breech-to-muzzle finned aluminum heat sink indicates the gun was most likely a Marlin-Rockwell M1917/18 machine gun purchased by the Army in 1917–18 for training and familiarization purposes, as the U.S. military never purchased the Colt M1895/1914 variant.