Is there suppose to something in or on the bottom of a factory 870 top-folder pistol grip? I just installed mine and noticed that the pistol grip is hollow but there is a (hinge screw?) hole on one of the bottom corners. To me it appears that there may have been some sort of base plate on the bottom. Can someone with one of these confirm if it is simply open on the bottom and hollow inside or is there suppose to be a base plate or something else down there?
RJ
RJ

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