354th SFS Mark 19 training

Airman Jeffery Gibson, a 354th Security Forces Squadron response force member, fires a Mark 19 grenade launcher Sept. 9, 2015, at Eielson Air Force Base, Alaska. To be qualified on the weapon members of the squadron must show proficiency annually. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Airmen from the 354th Security Forces Squadron gather at the combat arms range to conduct training on the Mark 19 grenade launcher Sept. 9, 2015, at Eielson Air Force Base, Alaska. To be qualified on the weapon members of the squadron must show proficiency annually. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Airman 1st Class Nathaniel Kibler, a 354th Security Forces Squadron response force member, adjusts his helmet in preparation for weapons training on the Mark 19 grenade launcher Sept. 9, 2015, at Eielson Air Force Base, Alaska. To be qualified on the weapon members of the squadron must show proficiency annually. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Senior Airman Jordan Thompson, a 168th Alaska Air National Guard combat arms training instructor, adjusts the aim of a Mark 19 grenade launcher Sept. 9, 2015, at Eielson Air Force Base, Alaska. Thompson was leading the training to qualify members of the 354th Security Forces Squadron on the weapon. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Combat arms training instructors Senior Airman Jordan Thompson (right), 168th Alaska Air National Guard, and Staff Sgt. Gregory Chmielewski, 354th Security Forces Squadron, replace the barrel on a Mark 19 grenade launcher during training Sept. 9, 2015, at Eielson Air Force Base, Alaska. Thompson and Chmielewski were training members of the 354th Security Forces Squadron on the weapon. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

A response force member from the 354th Security Forces Squadron loads 40mm rounds into a Mark 19 grenade launcher Sept. 9, 2015, at Eielson Air Force Base, Alaska. The launcher was first developed in the Vietnam War and has been developed since to be more reliable in combat. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Airman 1st Class Nathaniel Kibler, a 354th Security Forces Squadron response force member, loads a belt of rounds into a Mark 19 grenade launcher Sept. 9, 2015, at Eielson Air Force Base, Alaska. The weapon, which was first developed in the Vietnam War, takes two Airmen to operate, one to load and one to fire. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Airman 1st Class Nathaniel Kibler, a 354th Security Forces Squadron response force member, fires a Mark 19 grenade launcher during qualification training Sept. 9, 2015, at Eielson Air Force Base, Alaska. To be qualified on the weapon members of the squadron must show proficiency annually. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Senior Airman Jordan Thompson, a 168th Alaska Air National Guard combat arms training instructor, nods in approval as Airman 1st Class Nathaniel Kibler, a 354th Security Forces Squadron response force member, fires a Mark 19 grenade launcher during training Sept. 9, 2015, at Eielson Air Force Base, Alaska. Thompson was leading the training to qualify members of the 354th Security Forces Squadron on the weapon. (U.S. Air Force photo by Staff Sgt. Shawn Nickel/Released)

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354th SFS Mark 19 training

Published Sept. 16, 2015