As for the Islamist. They have just taught us what needs to be done to their relatives in our custody. They are simply bags of meat keeping data alive long enough to be extracted. Then the husks should be disposed of in a similar manner.
No, I cannot buy one here in the People's Republik of Kalifornistan. The interesting thing about the Bushmaster .308 is that it uses metric FN FAL magazines, which are dirt cheap. By contrast, the Armalite AR 10 series uses modified M 14 magazines, and the Knight's Industries SR 25 uses "original" configured AR 10 magazines. Go figure. None of the mags from these three will retrofit any of the others.