I want to have night sights put on my P7 psp but all I'm finding is night sights for the P7M8 are the slide sight cuts the same on these two guns? Will the p7m8 sights install on my psp slide? As an interesting side note a fellow forum member informed me that these "P7 PSP's" aren't psp's at all but are infact plain old P7's w/the euro mag release and no heat shield. I realize that the M8 is its own model and is a later gun in the P7 series with its own differences,but is the slide and its sight cuts one of these differences? .I figure this being the case then the night sights for a P7M8 should fit just fine right?