U.S. Marines with Delta Company, Infantry Training Battalion, School of Infantry - West, conduct a Mark 19 40 mm automatic grenade launcher live-fire range at Range 204B on Marine Corps Base Camp Pendleton, California, March 2, 2020. <br /><br />-----------------------<br /><br />Credit to : U.S. Marine Corps video by Cpl. Dylan Chagnon<br /><br />
