U.S. Army 1st Lt. Preston Patton, left, shows another U.S. Army paratrooper how to correct a malfunction in his M-4 carbine during an advanced rifle marksmanship course on Fort Bragg, N.C., March 24, 2011. U.S. Army 1st Lt. Preston Patton, left, shows another U.S. Army paratrooper how to correct a malfunction in his M-4 carbine during an advanced rifle marksmanship course on Fort Bragg, N.C., March 24, 2011. SHARE: Download: Full Size (2.13 MB) Tags: Photo Essays Credit: VIRIN: 450672-M-BNI95-120.jpg Photo Gallery