Remington Universal Magazine Cap and Swivel Stud - 20-gauge
Quickly and easily converts a Remington 20-gauge model 870, 1100 or 11-87 for sling attachment. Universal magazine cap with swivel stud replaces your existing magazine cap. Rear swivel stud simply screws into place after minor drilling. Sling not included.
The magazine cap is great and easy to install the only thing i do not understand is why the 20-gauge is the only cap and swivel stud to come with out the actual sling you have to buy it separately.