I first saw the 5.7  in all it’s glory with what I would consider to be AP ammo.   I heard a few people mention that they thought that this gun should be illegal, but ballistically it couldn’t do anything that the much more common M855 or SS109 could do.   Yeah I know that a criminal might prefer a handgun to defeat a police officers armor, but the last Police Officer killed here in Pennsylvania was killed with an SKS with standard ammo and a 30rd magazine that actually jammed.   The SKS can take detachable magazines, but I have never seen them hold up as well as the AK family of guns with these mags.   The 5.7 has the ballistics of something close to the 22 magnum, and even though that is not a very powerful stopping round it is as effective as the person carrying it.

I don’t know of any reliable 22 magnum semi auto guns, I know a few pocket revolvers that were fun to shoot, but if you want a small and light semi auto with similar 22 magnum ballistics and has a much  higher capacity, there’s nothing wrong with packing the 5.7 FN.  I think there are better calibers for duty officers, but there are a number of gun holsters like the Blackhawk Serpa that can be had for this gun.  Unfortunately the piece of crap that killed our soldiers at Fort Hood used this firearm arm very effectively, but hopefully anyone reading this will know that every firearm used in the hands of a good and law abiding citizen is an asset to society.