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P225-A1 slide finish

1483 Views 6 Replies 6 Participants Last post by  DCowboysCR
Finally got a new 225-A1 classic carry. Love it so far but when I was cleaning out the factory oil I noticed the rail groves on the inside of the slide are rainbow colored like when you excessively heat metal.

Any thoughts if this could this be that the Nitron coating was not fully applied into this area or something like that? Could this lead to problems down the road making it worth sending it back to Sig before I shoot it? I know it is a gun and it will wear, but I am pretty picky about my stuff.

Appreciate the thoughts.
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