If the finish is gone it's still protected by the tennifer. Unless you want it to look good it really won't hurt anything.Not a safe queen it's just worn all the way down to bare metal.
AllenM does cerakote work. He just cerakoted a Glock 19 that he did some machine work on the slide. Look in the diamond collision sub forum or PM AllenM and see what it will cost you.
It will NOT rust, its cosmetic only.
Meh, for the purposes of this tread...the rubbing off of the black finish will not result in rust with daily carry. Anything in possible though.Even with the metal treatment (previously referred to as Tenifer, etc), a Glock slide can rust. It is highly resistant to rust, but it can still rust. And yes, I realize that the "finish" on a Glock slide is not the metal treatment.
AllenM does cerakote work. He just cerakoted a Glock 19 that he did some machine work on the slide. Look in the diamond collision sub forum or PM AllenM and see what it will cost you.
Here's your answer.
Cerakote it or send it back to Glock for a new factory finish!