That wear issue is the most common complaint on the Mark 23 pistols. It has been addressed several times from customers through customer service and the repair shop back to Germany, but has not been addressed. The simple fix would be to have just a standard finish like the other USP barrels, but the Mark 23 is a tribute to the MK23 and it had a requirement for such a finish in order to reduce glare off that area which might interfere with sight acquisition.
Its a shame that a more resilient finish could not be incorporated.
On a MARK 23 the wear is really just part of the breaking-in process. The only real problem posed by this wear to the finish is when you try to sell a used MARK 23 to someone who doesn't know about the "normal" break-in wear. People unfamiliar with the MARK 23 are convinced that you are trying to sell them a worn out gun which simply isn't the case.
And to add, here's some wear on one of my KAC MK23 silencers
There's actually an interesting story to this silencer. The lettering on this silencer was only used to silencers sold to HK as well as less than 50 of the first Mk11Mod0 silencers. I think G3K confirmed that he used this as a demo can at one time.
Thanks to Kevin Boland at KAC for providing the information regarding the historical background. Kevin has always been great about sharing information.
The chipping of the paint is normal. HK included a card with my Mark 23 explaining that the maritime finish was what was specified by the US Government and would show visual wear with use but would still protect the gun and that cosmetic finish deficiencies are not covered by the warranty.
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