It's still loud on the short barrel, but what isn't? It's definitely not as bad as the 1.0 version. Much less concussion, blast and flash. What I'd really like is to run the new Battlecomp 51.0, but they're pricey.The 2.0 is better? Havent tried one yet. Been thinking hard about going the 2a titanium mount with the titanium gemtech halo. AAC doesnt really have anything that comoares to that combo imho