I didn't even think of it till now, but how would a sock work over the integral brake on the end of an Omega silencer? wasn't sure if it would be bad to cover those slotted ports or not.?.
Order it short enough that it doesn't cover the ports. I ordered mine so that it covers the whole can with the flatcap on it; if I use the ported end the ports are clear. 1.5" x 6.5" for an Omega will clear it (that's what I have).