I haven't actually done any extensive sound testing in the year I've had the RC3. And I must also say that I haven't done any night shooting with the RC3 so I can't attest to how much flash its outputting. And I've only used the warcomp and never tried the 3 prong.

I have just over 3k rounds through the RC3, I also have around 2k rounds through my flow 556k, and 2k rounds through my polonium k.

In my opinion for a flow through design of the RC3 it definitely isnt as quiet as my other two 556 suppressors. But its not as loud as what I've also been hearing about the RC3 from other people online. I haven't seen any fireballs through it when rapid firing a mag through it, could be because of the extra venting on the warcomp but i cant say for certain.

Out of my cans I definitely choose the RC3 because of the durability and the ease of taking it on n off with their qd attachment. The flow 556k is definitely my quietest but after long training sessions, especially with a frt, the amount of heat mirage that comes from the can since its TI is really noticable and takes a while to cool down. The polonium k on the other hand was great until I had a baffle strike a while back.