Sorry let me rephrase. The sound doesn't bother me, when I was shooting one I could fill it wiggling around and if I remember correctly it seemed like I had to wait till it stopped so I could shoot again as it was throwing my aim off.
I just bought one (i got a good deal on a new one) so now im trying to decided on the internals. I think I may go with the jp spring and a standard buffer? Not sure if I want to spend the money on the silent one from jp yet.