A small arms repairer, represented by the code 91F, is an arms technician that works in the armed forces or for a military contractor. Your duties and responsibilities in this career are to keep a wide variety of firearms and artillery equipment in working order. Some small arms technicians may also work on larger weapons, such as ballistic missiles and rocket launchers. You can work as a small arms repairer in several branches of the military, including the Army, Navy, and National Guard. Your work as a small arms repairer can lead to several different civilian careers, such as avionics and electrical mechanic work.