I picked up a Tapco collapsible stock for my AK47 w/milled receiver. My existing stock is held on by a top and bottom tang. The new stock just allows for a top tang. I considered taking a dremel to the stock and setting it up for 2 tangs, but it would seriously affect its integrity, (possibly unusable). I have been considering cutting the bottom tang off the receiver. Apparently most milled receivers have just the one tang? I do want a solid rifle and if this connection is a point of weakness would prefer not to alter it. Any input?