CARBINE CHECK U.S. Air Force Senior Airman Tyler Brunner checks M-4 carbine rifles in the armory on Ellsworth Air Force Base, S.D., April 27, 2010. Brunner is a staff armory airman assigned to the 28th Security Forces Squadron. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 498756-K-WGC48-381.jpg Photo Gallery