Scale Machine Gun Question
The gun would have been "Gun Metal"(it's a color(Testors) available at your local hobby shop) as color goes.
Wood color cocking lever.
Not sure as to why guys put silver on guns to show distress, as guns are made of steel(not silver in color) and then "blued". Ware points would be "Flat" and some black"ish" color with possibly some gray"ish" "steel color coming through.
Feed belts were leather during WWI.
Cartridges are brass(referring to the color, not the metal... although in this case they are one in the same). Bullets would have a "light copper"ish" " color to them (not to say they were jacketed in copper, just not sure of the metal used to jacket).
Oh yea... "LIGHTLY" blacken around the muzzel, and the area on the fuselage of the muzzle. This seems to be an area "way overdone" with paint by modelers.
Hope this helps,
Mustang51