Hey there everyone! I have had a Remington model 11 for awhile now but a couple years ago it was jammed I believe. At that point I attempted to take it apart and fix it(bad idea). Well just recently I got it back out and am trying to get it back together. There is one particular piece that I can not figure out what it is or where it goes. here is a picture of it. Any help please. Thank you. Also this is a 20 gauge version.