I hear you can get the cz p10 to work if you use a 13lb spring instead of a 20lb spring, but who knows. It's phenominally stupid for cz to sell a suppressor ready gun that won't run suppressor friendly ammo. How hard is it to include a reduced power recoil spring /guide rod assembly?
Firtst off, I am admittedly picky. 2nd,f i have not fired all these, but here is my take on the aforementioned guns: 509 I tried had a pretty bad trigger in it, I do not know if it can be improved. The p07/09/sp01 guns are nice, but my grip causes my thumbs to ride on the decocker. It's not a deal breaker, but it is uncomfortable. The vp9 feels nice, but my trigger fingertip rubs and gets pinched. Maybe the larger backstrap would fix it. No suppressor sights either. I liked the m&p ok, but the 2.0 version is too aggressively stippled for my taste. And the trigger is lacking. The canik tp9 was actually surprisingly nice, and the trigger in the combat elite model was unreal. The ppq threaded model was ok, but lacked suppressor sights. The XD is inoffensive but uninspiring.
I can pick a gun based on feel and features, what I cannot do is find out how they perform with a can, so all the input I can get is appreciated.
My understanding of the issue with the P10C was the top of the barrel at lock up. The tolerances/clearances are fine without the weight of the suppressor on the barrel. But with it there, it interferes with the unlocking, until things wear in.
As I said, mine started to break in after a couple of hundred rounds, as seems to be the norm, but I was still having the occasional issue with function. Not saying it wouldnt clear up eventually, but youd figure they would address it.
The top of the Glock barrels (the P10C is basically a Glock copy) have a bit more of a bevel at the front of the barrel where it locks up. Im thinking that may be the issue here with the CZ.
The Beretta 92 is by far the most reliable suppressor host. They'll even run without a booster with lighter suppressors, and will swallow light subsonic loads that choke other guns, such as Hush 165 gr. Why is a 92 not in the running for you?
M&Ps do OK, but get real sluggish with light loads
Glocks are fickle, tend to still need pretty stout ammo like AE 147s, which are pretty spicy and barely subsonic (read=loud) to cycle. I have seen more Glocks choke with a can on them, owners chock full of excuses while the Berettas run like sewing machines regardless of which can, what ammo and how well lubed the piston is. I consider Glocks poor suppressor hosts. The G20 I had wouldn't run suppressed unless you manhandled the thing, regardless of recoil spring, how much lube, what ammo.
FNs are reputedly good hosts, although I have no experience with them in 9mm.
Hard to go wrong with a CZ.
I have a Remington RP9 I threaded, and it does well with most factory ammo, but won't run the cream puff subs my 92FS digests.
I only have experience with the four Glocks I have that have threaded barrels on them, but they all run fine with any ammo Ive used in them. I dont use low power loads though, Glocks dont like them suppressor or not. Subsonic 147's run great in mine and are quiet, especially if you wet the can.
Other than the aftermarket barrels, the guns are box stock too.
All the Glock barrels just dropped in too.
My Beretta threaded barrel needed a bit of minor fitting, and break-in, but after that, it was fine, and the gun runs fine with it now.
Now that the Beretta barrel is broke in, I see no difference between the guns in function or sound.