User blog comment:Charcoal121/Favorite Weapons: Engineer/@comment-1017446-20111226204330/@comment-1990578-20111226223735

It doesn't slow the bullet down, unlike the silencer. Not much of an advantage IMO, considering it raises max spread by 50% and increases spread speed by 25% - versus reducing vertical recoil by 10%, lowering ADS spread by half for most weapons, but increasing minimum hip spread by a third for the silencer.

Have fun with this, these stats are ery accurate. http://symthic.com/?s=bf3&sb=attach