Originally Posted by Mark F
I've been interested in the FiveseveN since it was available. Never bought one though. For what you get, it's a little too expensive. My thinking is, if you want a screaming small caliber bullet get a rifle.
Admitting that I wasn't present in the conference rooms of the French Army when they decided to go with the 5.7, my understanding is that the 5.7 was developed specifically to answer the need for a Personal Defense Weapon (PDW) somewhat along the lines of the M1 Carbine. More range than a pistol, but a smaller package than a battle rifle. If that is a person's need, then the PS90 or a 5.7 (or 5.56) SBR may be the right answer.
As for me, the PS90 would be a tad difficult to carry concealed, even if it were re-classified as a pistol. For very short range defense, my tastes tend toward larger caliber heavier projectiles that make messy holes and destroy central nervous system components. That would have some readers conclude that I carry a .45ACP pistol; For a collection of reasons, I settled on the .40 instead and I can make that solution work. I am not trying to start a caliber war; just pointing out that different problems commonly need different solutions.