ok...i have a drop and an x-chamber and they fit litearlly perfectly(paper is the only thing that can fit through them)...i have a classic mag...eveyrthing stock besides the drop and x-chamber...but i wanna get an intellfeed...and i was wondering if the grips are exactly the same because if there not my drop and x-chamber wont fit..unless the intelli is bigger in height..all i really need is the height..b/c if its smaller then the regular frame on the classic i am screwed..thanks guys..