I wanted a replacement for my winchester 1300 HD gun and I had a few Remington parts laying around, my 3-gun shotgun is a 1100. So with a dremel, some parts, and a box stock 870 this is what I came up with: [img width=640 height=234]http://i58.photobucket.com/albums/g274/pfcmccutcheon/870.jpg[/img] 870 18in bbl Mesa Tactical 8 shot side saddle w/ rail Remington mag extension +2 speedfeed stock EoTech w GG&G throw lever mount Trijcon oversize tritium bead. Bownells aluminum mag follower Wilson Combat oversize saftey Ergo rail streamlight trl1 I had to cut the forearm to work with the side saddle, and then drill it to accept the rail. I also had to remove quite a bit of material on the inside for the rail hardware. The mesa tactical piece is the best I have ever seen, its all aluminum instead of plastic. I ran a few boxes of shells threw her and she runs like a dream. The centurion loads (1 .65 round ball & 6 #1 buck) are what I keep in the tube but if you look closely you will see some 3in OO buck and some slugs are readily at hand.