MARINE CORPS BASE QUANTICO, Virginia, March 25 -- The U.S. Marine Corps Systems Command issued the following news: By Matt Gonzales Public Affairs The Marine Corps plans to introduce a new weapon intended to enhance the lethality of infantry Marines on the battlefield. The M320A1 is a grenade launcher that can be employed as a stand-alone weapon or mounted onto another, such as the M27 Infantry Automatic Rifle. Scheduled to be fielded in fiscal year 2020, the system will give fleet Marines t  more