The lpr stem(spring perch) on the promaster is longer than the b2k, the stems are interchangeable though. Or a shorter spring may work.
Edit: got beat to it lol.
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