Springs

[Bubba-7]

I did not realize the different colors. The flip on the left has the more gray color like the loose ones above it. The other has a more bright blue color like the ones above it.

Information

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[jimb16]

I think it depends on what type of oil they were quenched in.....

[Bubba-7]

I had read that all WWII flip springs were blued and I had seen some not blue so I thought they were parkerized during a refinishing sometime. I did not think of different colors caused by the blueing process. In side, they look more light blue or bright dark blue. Then I looked at the two original rear sights and noticed the two different color springs matching two colors of the NOS springs I had. I have never seen this discussed anywhere so I posted pictures for Yous Guys.
There is just too much of this I don't know.

[usgicollector]

The inlands are parked because they were in the gun when it was parked. You can usually tell which way the flip was positioned by the shadow left on it from being covered up during parking. It has a shadow similar to the one on the barrel from where the band was sitting.
Now I need one of those springs!

[Bubba-7]

Now that you mentioned it, Inland flip rear sights on later blocks installed on carbines would have been parkerized. But how about the ones used as the 10% spare parts.

[frankderrico]

Good point Bubba.....Frank

[usgicollector]

Not real sure, I have never had a known replacement spare.

[Bubba-7]

These came to me from a military base in Califorina by two other previous owners(vendors not collectors). I have had them over ten years. I would say these were NOS spare parts. The pack was ripped up and was discarded. Without the pack, they are of unknown manufacturer. Based upon all the other parts I bought from this Vendor, I have no doubt they are US GI WWII manufacturer. Just don't know who.