I recently had the opportunity to work on a Remington 870 that was having some feeding problems. As I began dissasembly of the gun the magazine cap flew off as I unscrewed it. Along with the cap came the green magazine plug for hunting. Thankfully I still have both of my eyes! The customer was reporting cycling issues with the gun, and it became evident why. The magazine cap had been placed over top of the magazine plug, which was on top of the...