just looked at mine and it bolts thru the stock so I would assume the pistol grip does the same, look for a removable cap etc at rear of grip ??? do you have a stock set for it??? I have a complete wood set forarm and stock extra for mine. If you need 1 let me know.
yes mine has the black plastic furniture also but I picked up a set of wood for it at a gun show here that had neve been installed on a gun before. I like to go out and shoot trap with mine to keep my reflexez sharp I generally start from the low ready position and bring it up and snap shoot. they are a nice HD shotgun.