M4carbiner's,

I need some serious purchasing assistance. I've decided to get a can and I'm totally lost... I own a DD M4V7 and I'm looking for the following features in priority order:

Maximum sounds suppression
Minimum loss of zero at 100 meters
Quick Detach

I'm leaning towards a Surefire or AAC model but I can be persuaded towards other brands.

Any comments or help here would be totally appreciated.