Question about part used to held the gun
Hello
I use the opportunity of these thread to ask you a question about the parts used to held the upper of gun.
I am actually restoring a HUP and some of these parts are very rusty and I have observed that the coat of paint is very deep as showed in the associated pic.
I am sure that it is not "normal" paint but what is the coat used?
Regards Serge
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