Congrats on the purchase.

Not sure which model you have, but the claim is that the brand new tactical guns released this month (?) will have stocks that can be retrofitted to some older models. Might want to contact CD parts department as they are planning on selling the stocks sepearately. BTW - Are you sure you want a pistol grip? Can be a little tough on the wrist, especially for wives and daughters...

Not sure what else you are looking for, but for me the best two accessories for home defense are an extended mag tube (already mentioned) and a weapon light.

The Surefire fore-grip lights aren't made for your gun, but there are a number of other lights that will fight on nearly any shotgun.

As for the extended mag tube... seems to be the hot questions lots of folks are asking with no replies.

Hope this helps,