Hi - I'm having brain fog today about my G27. Over the years I've dremeled my 27's frame into a piece of crap. Now I want to buy a new lower and leave it alone. I don't remember if a 27 and 26 is the same lower frame? I have found several 26 lowers but don't know if my 27 upper will work on the 26 - or do I need a specific 27 frame. Many thanks, jw38 Wanna kill these ads? We can help!