This is a GG&G, Inc. Side Saddle, model GGG-1525.
The GG&G Remington 870 Side Saddle (also fits 1100 and 1187 12ga models) facilitates loading the mag tube and the chamber. Compatible with the short tactical length forearms only. Longer length sporting forearms will need to be replaced prior to installation of the Remington Side Saddle.
Features:
No modifications are required to the weapon for installation
6061-T 6 aluminum
Non-marring backing plate