Yes a P22 will absolutely be able to kill you dead, its been the long standing assisnation weapon of choice for many nations around the world for decades.
The p22 is one of the best host guns for a can, right next to an inetegrally suppressed mk varient.
As far as cans check out the Gemtech Outback II, as well as tac innovations. You need to decide if you want somethign that you will run wet, (with liquid to further supress sound) or dry (without), also remeber 22's foul quite a bit so remember to keep it clean and be careful trying to run a 22 can on an ar due to the fouling issues from the 22's
finally dont fool yourself into believing that your gonna get 'hollywood silent' but with a good quality can and SUBSONIC AMMO the click of the firing pin will be clearly heard along with the report.
BY THE WAY I AM INSANELY JEALOUS, YOU GUYS GET DOWN THERE GET ALL THE FUN TOYS WITH NONE OF THE HASSLES.
ahhh yeah there is, ask any hunter in northern Europe what happens if they shoot somethign without using a supressor. shooting is extremely loud and will cause hearing damage if unproteted, hearing loss is progressive and non-reversable,
but who gives a **** nobody ever said anythign about only being allowed ot have somethign because its needed, why do cars have 300 hp, why do we own more than one different style of clothing, but you playing wiht your dick makes sense given your point cause your clearly stuck ith something that has no need so you use it accordingly.
logic of course theres always earplugs, but respectfully this country was fonuded out of the neccesity of the simple belief that the people and not the goverment proxy or otherwise should should be the ones who are responsible for dictating the terms of freedom it exactly what the basis of liberty is formed upon.