FX Stackable Moderators

So the real question is does it work?

+1-does it work. Sound is not a major problem for me and I don't own any other moderators but I like the concept of this one.

the ones that come with FX rifles work...same concept.

I use the one that came with my 600mm .22 barrel kit for the Impact along with 2 extra 75mm center sections and 10 3D printed air stripper baffles. I shoot 18.5gn at 1010fps on 120 bar and it sounds like a blowgun. My Impact is modified.