Grenade Launcher Army Sgt. 1st Class Joaquin Spikes fires a 40mm training grenade from an M320 grenade launcher module at Camp Atterbury, Ind., July 18, 2017, during Army Materiel Command's Best Warrior Competition. Spikes is assigned to the U.S. Army Security Assistance Command. Army photo by Sgt. 1st Class Teddy Wade SHARE: Download: Full Size (1.5 MB) Tags: Soldiers, Army, training, Northcom, Best Warrior Competition Credit: Sgt. 1st Class Teddy Wade VIRIN: 170718-A-AO884-039A.JPG Photo Gallery