Sig p220r finish? Need help

I don't know about YOUR Sig, but MY P226 is a "reverse twotone", straight from the CPO factory refurbishment. It has white small parts on the black anodized receiver, though.
 
I am thinking that is factory.

It would require a strong media blaster to remove the nitride layer off of a slide, especially in all the nooks and crannies, and the edges are to defined, not softened like media blasting would do.
 
would require a strong media blaster to remove the nitride layer off of a slide, especially in all the nooks and crannies, and the edges are to defined, not softened like media blasting would do.
Click to expand...

The older slide models weren't nitride though.

would require a strong media blaster to remove the nitride layer off of a slide, especially in all the nooks and crannies, and the edges are to defined, not softened like media blasting would do.
Click to expand...

Sometimes we don't have the answer to the question. Luckily you can get your money back.
 
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Yea idk. I had an HK redone in NP3 and honestly the lines and serrations were still very sharp, and that was a black oxide finish that was removed similar to what the old SIGs had.

Certainly possible it could be factory. SIG had a number of years where they had two tone models. Looks like this one is from the '07-'08 timeframe. http://sigforum.com/eve/forums/a/tpc/f/430601935/m/7320040262. At the same time that means the original finish could have been nitron as I've seen posts going back as early as 2006 that mention the finish on US guns, but then this thread suggests the German made SIGs didn't start using it until mid 2008 http://www.xdtalk.com/threads/question-about-sigs-and-finishes-and-police-surplus.134098/. The earlier SIG two tone guns were nickel and that has more of a shine than the OP's picture, but the later ones were I think just bead blasted stainless? That's what this looks like to me. If I had to guess either way I'd say factory original. If you do a Google search you'll find similar looking pistols.
 
I've seen several factory guns over the years that appeared identical to the one above, so I don't understand the question really.
 
marine6680 said:
It would require a strong media blaster to remove the nitride layer off of a slide, especially in all the nooks and crannies, and the edges are to defined, not softened like media blasting would do.
Click to expand...

As best I can tell, from a lot of reading, the metal on nearly all of the major gun brands is given a type of nitride treatment (called ferritic nitrocarburization) BEFORE color is applied. The nitride finish is a form of case hardening -- hard and relatively thin, but very durable. The stuff that shows holster wear or scratches is a colored finish applied AFTER the surface hardening is done.

Glock calls their version of this nitride-type finish Tennifer, Springfield calls their Melonite, S&W now calls theirs Armornite, and SIG calls their version Nitron. They're all similar, with minor changes that they call proprietary.

If this information is correct and the slide's surface had been media blasted, it would take a LOT of media blasting to get through the nitro-treated surface. Might not take as much to get down to an underlying stainless steel slide.
 
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