It will as long as you use the bushmaster stem or possibly a shorter spring. Other than that it should fit and function without other modifications.
Just an average BKO whore nothing much to see here except paint on your goggles from an unfamiliar marker!
03 SE Orange BKO w/pds fully upp'd
03 Black BKO (blind and in peices)
02 SE BKO well upp'd
02 Green x-mill B2k w/shocktech tray (soon to be lcd)
04 B2k4 w/pds red/black fade (stock for now)
05 Promaster slightly modified