So I went out skeet shooting for the with my new gun for the first time, it was freezing... A new Remington 11-87. When I had taken it apart when I got it to see how everything worked, and I apparently put the piston seal assembly on backwards. So needless to say the whole auto part did not function and frustrated me for about 4 rounds before I figured out what the problem was. So after we got done I went to clean it this afternoon a rubber ring was destroyed and it just fell apart when I took off the barrel. I think this barrel seal and I am trying to find a replacement part. Does anyone know where to find one. I found this on midway MidwayUSA - Remington Barrel Seal 1100, 11-87 12, 16, and 20 Gauge I'm not sure if this is the right one or this MidwayUSA - Remington Barrel Seal Activator Remington 11-87 12 Gauge Super Magnum I have the regular 11-87 12 guage and not the super magnum. Has anyone else had this problem or did I just put the part in wrong? I slid on the piston seal assembly with the thinner part towards the muzzle and I slid the rubber seal over that. Any help would be appreciated. Thanks.