They *AREN'T* called silencers damn it. They *ARE* called "SUPPRESSORS".
I'd suggest that you review your knowledge. Yes, the technically correct term is suppressor, but if you have paid attention, when they were created, they were dubbed silencers. :tops:
Can't link to it from my iPod, but google it, and educate yourself. Read on "Maxim Silencers", amongst other things. Thanks.
Quoting from wiki, cause it's easiest, but there are about a thousand sites on it: "Despite being misleading, the term "silencer" is still a wide-spread, even official term."
On topic: I swear I read that we can't. And for good reason. They are supposed to look much different this time around, and modding would possibly diminish looks and make the weapon overpowered.