Sig Sauer ASP20 on Ebay

[GoldenStateAIRGUNer]

That is not a muzzle break on the Sig, it is an actual moderator.

That is true ! I believe it has some kind of fibrous meshing material
inside. I didn't find the ASP20 to be any louder..or quieter..than a
T06 RWS 34 in 22cal that I use to own. And it was a 17-18 ft lb rifle