Two interesting articles with recent updates on the attempt to get silencers/suppressors removed from the NFA registry for you to enjoy:
http://thehill.com/regulation/legislation/350333-lawmakers-spar-over-gun-silencer-bill
http://www.mcclatchydc.com/news/politics-government/congress/article170748667.html
You can buy a silencer here:
http://shop.redcircletactical.com/catalog.supressors
