Slamfire Shotgun

I'd heard that old Winchester 97 shotguns can shoot by holding down the trigger and pump-cycling the action.  That got me thinking as to whether the disconnector could be removed from the trigger group of a Remington 870 to do the same thing, so I searched for such info.  After all, someone on the interwebz had to have tried it.

Apparently it's not possible on the 870:

as one who performed warranty repair on both mossberg and remington, their nomenclature for disconnector is the part that leaves the hammer cocked when you cycle the arm with the trigger pulled. it would be pointless to disable these parts, because the design of those two particular arms would only allow the hammer to follow the bolt. it would not behave like an old ithaca 37, or win '97 or old m-12.

The poster also brought up the good point that such a modification might be considered a machinegun conversion, since continuously depressing the trigger might be considered a single trigger pull.  A different forum post noted that the Ithaca model 37 has the same behavior as the Win 97.  Whether that's true of new production guns isn't clear.