This script is not changing the colour of Wood parts?

Hi, I'm implementing a system where you can customize the colour of your gun. The RecolourValue is a BrickColorValue. It prints "1" and also prints "2", but does not print "3".

PrimaryMaterial = "Wood"

for i,v in pairs(script.Parent:GetChildren()) do

    print '1'   

    if v.ClassName == "Part" or v.ClassName == "WedgePart" then

        print '2'       

        if v.Material == (PrimaryMaterial) then     

            print '3'           

            v.BrickColor = BrickColor.new(script.Parent.Parent.Parent.shopandinventoryvalues.RecolourValue.Value)       

        end     

    end

end

Thanks for your help!