It's not a 1 shot unless you get a headshot, to the CT's because of their armor advantage. So in the case of secondary or primary it's obviously a secondary. Considering it may 1 shot people with no armor at certain ranges, it's a given that it is freekilling. Seeing as there's no warning shot given if they blatantly rebel, etc.
Sidenote - Remember this is a new weapon release, so the only way people will get this weapon, is if they have it switched rather than the deagle and it's on a map with an armory that has the weapons that aren't individual.