Please allow an old holster maker to weigh in on this one.

The S&W M&P autos have an applied finish that is very tough, nearly impervious to holster wear. What you are seeing is a small transfer of leather fibers and leather finishing products, some of which may be reacting chemically to the handgun finish. Nothing to worry about.

Back in my old days, we carried blued steel handguns, and holster wear was an issue. Many users purchased holsters lined with suede or other materials in an effort to minimize holster wear. I say "minimize" because that is all one can do! Anytime you encapsulate an item within an abrasive environment, then apply pressure unevenly every time the wearer's body moves, there will be friction.

Some holsters are more closely fitted to the handgun than others may be. This tight molding will actually decrease holster wear over time, even though the tight fit results in greater friction during insertion of the handgun and drawing from the holster.

The majority of holster wear has always been caused by movement of the handgun within the holster. The actual insertion of the handgun into the holster, and actual drawing of the handgun, are events that take place with little frequency; however the handgun is constantly being shifted about within the holster with every movement, every step of the wearer.

You have noticed the results of using your handgun with the holster that you have, and you are taking the proper methods for dealing with those results.

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