ΔE 8.8, close: similar, with a visible difference side by side. Light Gun Metal is a little darker than Plate Mail Metal.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Light Gun Metal is a little darker than Plate Mail Metal.
The same difference applies the other way round: Plate Mail Metal is a little lighter.
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 Plate Mail Metal on the colour wheel See Light Gun Metal on the colour wheel
All matches: Plate Mail Metal equivalents · Light Gun Metal equivalents