As stated, the M2 interior will plop right into the M2A2 kit since they use the same hull, of course, there's been a lot of changes to the Bradley interior since the M2 A-nothing was in use. Side firing points were deleted, stowage was rearranged and the seating was rearranged (several times). Not to mention the fact that the interior of the A2 has the anti-spall lining inside the hull surfaces.
I have detail photos of the interior of the M2A2 (non-ODS) and an older M3 and M3A1 in my motor pool gallery (see link below).