@ tomjerry1 The pic that SCTaylor posted is what I have on my Pro Match .40 .... To clear things up the grinding was on the Nitro Fin to make it fit and not on the gun it's self. The Nitro Fin is made longer something like an 1/8 " longer than stock this may be so you can fit it to your needs. As a side note the black is stainless steel under the coating