Ruger II, rimfire .22 Yes you read it right rimfire, so very
slow. Usually used for sentry, and shot into the base of the skull.
How does it sound like? I read it sound like "spit hitting the
sidewalk"
The SOG with the slide lock has the undisputed knock down power,
but I can't see an Asian shooting this monster well. It is some 11
inches without silencer.
The slide lock will prevent the slide from cycling preventing sound
from escaping from the ejection port.
The P90 if use properly should be quieter and easier to handle than
the SOG. It can be re-used for the main objective.