Cadet Nana Gyasi, a sophomore family and consumer sciences major, demonstrates her ability to work a Mark 19 Grenade Launcher at the ROTC U.S. Weapons Lab in the McAffee Gym Thursday Jan. 26, 2012. The weapons lab gave the cadets the opportunity to handle weapons, including the M-2 .50 Caliber Machine Gun, M-4 Carbine, M-9 9mm Pistol, M249 Machine Gun, M240B Machine Gun and Mark 19 Grenade Launcher, before going to the firing range later this year. The M 19 Grenade launcher has a sustained rate of fire of 40 rounds per minute according to the provided MK 19 operational data.