I just took a look at my silencers and saw that there was no filter inside. The local mech here said that this silencer was designed without the filter in place.
Not sure if that is right.
Does anybody have a pic of the filter for the silencer?
Henry the way the modern reproduction silencers are made, is with a perforated tube running through the silencer. The tube is encased with fibreglass wadding to deaden the noise.