CrashNemesisII

Hi guys, I'm thinking of a project but i'm still in doubt if it can actually be done. I want to make a TM scar/masada hybrid. So dropping the scar gb and hop into the masada (with probably some dremel work) As i currently own neither (i used to own the a&k masada) i was just wondering if the recievers, upper/lower would offer enough room for the scar GB and hop up (with some dremel work) or would there never ever be enough room? Looking forward to your input. Grt