Uh, it’s Homeland Security, not the Military, Unc.
Which makes it even better! Why? Because DHS is (Supposedly!) a CIVILIAN Agency, and thus, if they say the AR is suitable for them, then that blows Feinstein’s “Military Characteristics” out of the Water.
Smart Lawyers out there might want to note that when they file the Lawsuits to Protect the RKBA.