Most stock type 96 springs are 10 mm or .4 inch OD, most aftermarket pss2 springs are .5 inch 12.5 mm OD. if you are getting a 150sp or greater I would highly recommend a 9mm spring guide. and yes the 12.5 mm will fit in a type 96 cylindar. I have a pss2 170 sp in my well mb01, mb05, and mb08 (all are type 96)durtboy17 said:Yeah.. All I can find is PSS96 spring guides.. Ok, so the PSS2 will fit?? Just to ease my mind, does anyone have the outter diameter measurement fot the PSS2 150 spring?