Private First Class Nathan Culver, an engineer equipment mechanic with Engineer Support Company, 8th Engineer Support Battalion, removes the safety pins from an M67 fragmentation grenade in preparation to throw it aboard Camp Lejeune, N.C., March 27, 2015. The training ensured junior Marines still remembered how to handle a live grenade, and also served as a refresher for more seasoned Marines who haven’t used these skills in quite some time. - Private First Class Nathan Culver, an engineer equipment mechanic with Engineer Support Company, 8th Engineer Support Battalion, removes the safety pins from an M67 fragmentation grenade in preparation to throw it aboard Camp Lejeune, N.C., March 27, 2015. The training ensured junior Marines still remembered how to handle a live grenade, and also served as a refresher for more seasoned Marines who haven’t used these skills in quite some time.