Yup, because its difficult to convert a post ban into a preban configuration that they have in stock For a few bucks you can have the muzzle threaded, screw on the flash hider and add a collaspable stock.

I wouldn't put Bushmaster in the 'anti' category jsut yet.
On the other hand, Armalite has had an ad campaign several months ago giving a free flash hider out to anyone who bought their rifles- which the company will fit to the rifles when the ban expires.