The trigger pin replacement kits, also known as “anti-walk” pins, can be installed in Remington 870/1100/1187 shotguns to secure the trigger pins in place. These kits are incompatible with receiver mounted SureShell carriers or side Picatinny rails.
What more can you ask for? After having a screw pop out of my receiver when busting some clays, I was able to confidently get back in the action with this trigger pin replacement kit. At least for now, I can trust my 870 to keep crushing more clays without screws popping out of the receiver.