Originally, I planned on buying a stainless Sparrow, but ended up buying a Spectre II instead. I am totally happy with the level of suppression, ease of maintenance, and size/weight.
This Fall, I wanted a second rimfire can and wanted a Sparrow just for something a bit different. Everybody was sold out,.so I just ended up buying a second Spectre II. So, I think that pretty much sums up how happy I am with the Spectre.
Cant beat the price either. Less than 300 bucks shipped from Silencer Shop.
To my untrained ears, I cannot discern any frp with the Spectre on either a rifle or pistol. On a pistol, its quiet and has a nice tone. On a rifle shooting subsonic ammo, the Spectre is stupid quiet. You literally hear the hammer drop, and then the bullet smack the target down range. Its about the most fun you can legally have with your clothes on.