Quote Originally Posted by jesse_ View Post
One more question; would a mid '42 SA receiver be manganese parked or zinc parked?
Zinc was used during WW2, manganese came later. If an M1icon went thru a rebuild/refinish after the switch to manganese, that's what it got.
The color you get will depend on several factors. With fresh solution and correct immersion time, it will be a very dark slate gray. If you spray it with WD-40 while it's still hot, it will get even darker. You can even achieve the WW2 green tint by swabbing with the old green GI rifle grease. That's what I did to the Browning High Power pictured below years ago.
As you can see in this pic, the color can vary quite a bit. The really light gray M1D was dry packed after refinish and the solution was probably not fresh either. The black one is manganese. It came from the CMPicon that way.





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