I use my .22lr cz for rabbits and plinking (doesn't everybody?)normally subs and as I shoot rabbits at night I like the rifle to be quiet. I started with the parker hale, cheap as chips but quiet and solid. It made the rifle long even with the 16" barrel. When I saw the DM80 I decided to take the plunge and ordered one. It seems we have a bit of a supply problem I didn't might much but they drove my RFD up the wall. Anyway after about a 2 month wait it turned up. Yes it does make my rifle shorter and much more pointy (if there is such a word).
It seemed quite big 20cm long and 4cm diameter but that didn't worry me as I am used to the big mods we have on centrefires. I have to say the wildcat I saw seems smaller.
On the test fire it certainly moderates the sound but it did not seem much quieter than the P.H. but then I suppose as you are closer to the noise. I think I had high expectations.
Anyway my CZ has a whopping nighteater 8*56 ( Yes I know) but it keeps me fit draging the thing around. So I pop the lamp on top sneak up on bun check backstop press switch on lamp. Big half moon of white light through which after about 2 mins trying I just made out said bun escaping at speed.
So I suppose I could sick tape or cloth or something on the flat end of the mod but I like the clean look of the rifle so I will go back to a standard mod. One of those plastic ones from highland next watch this space.
Overall it as quiet as a PH which is Ok it does make the rifle much shorter and it is much cheaper than the wildcat. if you don't have a big scope and use a scope mount lamp it will be fine.
One safety note as we are on a public forum. A scope mount light with a rimfire requires experience, great care and a knowledge of the ground if you are not sure use another method.
Hope this helps