We need to stress that S.150 proposes to ban "an entire class of 'arms' that is overwhelmingly chosen by American society for [the] lawful purpose" of self defense (i.e. the AR-15).
We turn finally to the law at issue here. As we have said, the law totally bans handgun possession in the home.It also requires that any lawful firearm in the home bedisassembled or bound by a trigger lock at all times, rendering it inoperable.As the quotations earlier in this opinion demonstrate,the inherent right of self-defense has been central to theSecond Amendment right. The handgun ban amounts to aprohibition of an entire class of “arms” that is overwhelmingly chosen by American society for that lawful purpose. The prohibition extends, moreover, to the home, where the need for defense of self, family, and property is most acute.Under any of the standards of scrutiny that we have applied to enumerated constitutional rights,27 banning from the home “the most preferred firearm in the nation to ‘keep’ and use for protection of one’s home and family,” 478 F. 3d, at 400, would fail constitutional muster.
District of Columbia v. Heller
So called "assault weapons" may not be "the most preferred firearm in the nation to ‘keep’ and use for protection of one’s home and family" but the AR-15 may be the most preferred long gun in the nation for that purpose.