Groov...here is what I would put on it.
Trijicon Night Sight Ghost Ring Set with Tritium Front Sight Remington 870, 1100, 11-87 Parkerized - MidwayUSA
Trijicon Night Sight Ghost Ring Set with Tritium Front Sight Remington 870, 1100, 11-87 Parkerized - MidwayUSA