my MP40 after sandblasting and refinishing

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Had the hole of gun sand blasted , then left the metal receiver in bucket over night in salty water, creating some light rust ,then light cleaning with very fine wire wool to remove some surface rust, then apply gun blue on metal receiver in between coats light polishing on wear points, do the same with aluminium using birchwood cassey aluminium black, high lighting areas wich wear with wire wool.-- attachment is not available --