I am adding a link here to a BATFE letter regarding the compliance status of the forward pistol grip on an AMD-65... Please see the letter here:
http://www.quarterbore.net/forums/showthread.php?t=154
As a result of some confusion that I just saw on ARFCOM it is important to note that while the forward grip is NOT considered to be a FOREIGN PART because it is a pistol grip... IT IS A FOREIGN PART as it is part of the forarm which is on the list of items that count towards your Import Parts Count... Also, note that the forward grip doe not count as a handguard so removal of the forward grip does not eliminate the fact that the sheetmetal that is left is still a forearm and counts as a countable part...
Wow, is this clear as mud?