ΔE 6.3, close: similar, with a visible difference side by side. Russian AF Grey N.3 is more muted than Grey Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Russian AF Grey N.3 is more muted than Grey Green.
The same difference applies the other way round: Grey Green is more saturated.
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 Grey Green on the colour wheel See Russian AF Grey N.3 on the colour wheel
All matches: Grey Green equivalents · Russian AF Grey N.3 equivalents