This is a GG&G, Inc. Sling Mount known as the Front, model GGG-1084.
The Remington 870 Front Sling Attachment solidly mounts behind the end cap of the magazine tube and is manufactured with a stainless steel ball bearing detent to secure the unit behind the end cap of the magazine tube.
Features:
Compact & easy to install
Designed and manufactured to withstand the rigors associated with professional use
Ambidextrous
