ΔE 51.2, loose: different enough that you should pick on purpose. Armageddon Dust is noticeably lighter, much more saturated than Matt Black Primer.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 51). Armageddon Dust is noticeably lighter, much more saturated than Matt Black Primer.
The same difference applies the other way round: Matt Black Primer is noticeably darker, much more muted.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Matt Black Primer on the colour wheel See Armageddon Dust on the colour wheel
All matches: Matt Black Primer equivalents · Armageddon Dust equivalents