Most kydex holsters are very hard on any firearm finish. If course, a poorly designed leather holster can also tear up you pistol in short order. We generally recommend a quality leather holster, but NP3 is pretty tough stuff and will hold up to kydex better than almost any other finish. Care fo it as you would a blued firearm and it will last a lifetime.
The Robar Companies
Offering premium firearm finishes, custom gunsmithing and polymer pistol frame reductions & modifications since 1986.