From the top:
1945 Garand M1 (while not black, CLEARLY it's the most dangerous assault rifle I own, because it was actually used by the Army!
)
Savage Mk II Tactical in .22LR, which is obviously a sniper rifle because, well, come on, look at that scope!
CMMG/BCM AR15, with (at the time) Ace SOCOM Stock and EOTech sight and Troy VTAC handguard.
CMMG/Alexander Arms AR in .50 Beowulf, also with Ace Stock and Troy VTAC handguard.
Springfield XD in 9mm that I'm not too good with just yet.