When you look at a Pardner Pump 12 ga and a Remington 870 12 ga. pump they are identical as you all probably know, so here my question. 1) will 870 parts and mods work on a Pardner Pump, I would imagine they would. 2) if not where can i buy aftermarket parts to mod out the Pardner Pump. Reason I ask is cause I would like to change my stock buttstock to a pistol grip buttstock. NOT JUST A PISTOL GRIP. Also I would to put a hard plastic 5 shot holder to mount on it as well, if you all know what i talking about. Thanks for the help ya'll.