I havent taken possession yet so I have to wait still..
But I've heard these suffer from light strikes with hard military primers. Is there a modification to fix that? If they run fine with commercial primers, that's fine too...
I didn't have any issues with light strikes......buuuuuuuuuut....
The newly added fire control group takes up a lot of real estate in the receiver- so much so in fact, that it was fouling the edge of the receiver catch at the rear and preventing it from locking fully. The first time I fired it, the receiver blew open, the bolt and spring flew out, the mag dropped, and loose rounds went everywhere. Fortunately, little Timmy (me) didn't lose an eye.....
The problem was they had bent the catch plate in the lower receiver to allow the fire control group to fit. I was able to get it to latch better after a few minutes with pliers and a Dremel, but I never really trusted it after that.
I put maybe 200 more rounds through it without incident, then sold it.
IMO, the military surplus parts on the PPS were top notch quality, but the newly made semi-auto conversion bits are "meh" at best. The fire control group is obviously rough-cast, with rather flimsy looking springs and plastic bushings. Ive read of other people having issues with broken springs and hammers, and I.O. customer support and spare parts are unobtanium.
Hope you have better luck with yours than I did! It is a cool looking, accurate, and nice handling gun.