Staff Sgt. John Lepore, 316th Security Forces Squadron patrolman, shows Senior Airman Michael Jones 316th SFS patrolman, how to clear a M249 light machine gun at Marine Corps Base Quantico, July 15, 2010. 316th SFS combat arms instructors qualify base defenders and forward deploying members as needed on the M249 which fires up to 1,000 rounds per minute at a range of up to 3600 meters. The M249 is one of three fire arms that Andrews Airmen can only quality on at Quantico. (U.S. Air Force photo by Senior Airman Melissa V. Brownstein)