AR-15, assault weapon or personal defense weapon?

Answer: when government buys it, it’s “PDW”. If civilian buys it, it becomes assault weapon.

Homeland Security seeking to purchase 7,000 'assault rifles'
January 26, 2013
By: Joe Newby

The Department of Homeland Security (DHS) is seeking to purchase up to 7,000 “personal defense weapons” (PDW) -- the same rifles called "assault weapons" when owned by civilians, The Blaze reported Saturday.

The initial request was posted last June, but just recently came to light, Jason Howerton wrote.

Homeland Security seeking to purchase 7,000 'assault rifles' - National Policy & Issues | Examiner.com