Marine Corps Lance Cpl. Shawn Swinson, Ammo Technician, Headquarters Company, Headquarters Regiment, 2nd Marine Logistics Group, instructs Midshipmen on how to properly fire the Mark 19 grenade launcher at the Battle Skills Training School Indoor Simulated Marksmanship Trainer as part of the Career Orientation and Training of Midshipman Program (CORTRAMID) on Camp Lejeune, , July 20, 2017. The summer training program is intended to ensure Midshipmen make an informed decision towards service assignment. ( Marine Corps photo by Lance Cpl. Tyler W. Stewart/Released)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: bsts, chamber, gas, ismt, m240b, midshipmen