I bought a Silencerco Osprey 9 suppressor for my G17.
I love the mount - it locks up very tight. In restrospect, however, I should have gotten the Osprey 45, since I could have used it on my G21SF as well.
I haven't chrono'd any factory ammo out of it, and I don't reload 9mm, so I can't help you there.
Matter is merely energy condensed to a slow vibration; we are all one consciousness experiencing itself subjectively. There is no such thing as death. Life is a dream, and we're the imagination of ourselves. And now...the weather! ---- Bill Hicks