870 style parts interchage, little help picking the right make/model
 

I have a good bit of real steel 870 folding/colapsable/adjustable stocks, forearms, magazine extentions and sight rails sitting around. I am looking at purchasing an airsoft 870 that I hope I can install the real steel parts without doing modifications to fit.

Can anyone tell me which, if any of the currently offered/manufactured 870 style airsoft guns would take the real steel parts?

Thanks
Wes