MK-19 Rounds Marine Corps Lance Cpl. Cole Hanks approaches the gun line for his turn to fire a 40 mm MK-19 grenade launcher at Camp Lejeune, N.C., Feb. 6, 2018. Hanks is a military policeman assigned to Bravo Company, 2nd Law Enforcement Battalion, II Marine Expeditionary Force Information Group. Marine Corps photo by Cpl. Victoria Ross SHARE: Download: Full Size (1.69 MB) Tags: Marines, Pacific Command, training, Pacom, Marine Corps Credit: Cpl. Victoria Ross VIRIN: 180207-M-DX405-001A.JPG Photo Gallery