U.S. Air Force 2nd Lt. Harlan Glinski, left, 35th Security Forces Squadron logistics and resources officer, watches as Staff Sgt. Quentin Gray, 35th SFS combat arms instructor, demonstrates how to hold and fire a M203 grenade launcher during qualification training at Draughon Range, Japan, May 16, 2012. The M203 grenade launcher is a single-shot weapon designed for use with the M16 series rifle and M4 series carbine and has an effective range of approximately 400 meters. (U.S. Air Force photo by Tech. Sgt. Marie Brown/Released)
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