Is this normal?

I would say it is normal. The substance at the striker channel is the grease Glock uses. Did you field strip it after you bought it?

The copper stuff is Glocks anti seize stuff. No worries there. As for the blue substance….hell if I know. Never seen anything like it.

The blue stuff is part of the metal treatment/finish. They all have it, though mine was more of a purple on my 19X, very normal for that finish.

Yes it's normal, it's Glock's factory coating..

Hmmm.., just bought a Gen 5 Glock 45 and a 43. Since they’re “ blued,” and not FDE like most of the 19X I’ve seen, is that a specific heat treatment for the 19X alone or just for the factory FDE finish?

I’ve seen the reddish stuff along the slide rails and firing areas a million times (we issue Gen 4 Glock 19’s at work, they all had it) but I’ve never seen the purple coloration inside the slide like that before.

Stay safe.

JR24 said:

The blue stuff is part of the metal treatment/finish. They all have it, though mine was more of a purple on my 19X, very normal for that finish.

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Since when?? I've owned over 10 Glocks and never seen it.

tarosean said:

Since when?? I've owned over 10 Glocks and never seen it.

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how many of them had the Glock 19x PVD finish?

It’s been reported normal specifically for that model, head to Glocktalk and do a search, all over the place when that model came out

I've never seen the purple either, but all of mine are 10+ years old

Wish I still had my 19X to show the same colors, but I only have the black finish ones (currently) which, as noted, don’t do that

JR24 said:

It’s been reported normal specifically for that model,

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They can claim its normal.. However seems to me it's 100% half-assed.

OK, noted

My 19X has that same purple finish near the muzzle end. I believe (and it's apparently confirmed to be) it is a byproduct of the heat treating/nPVD finish.

When you are shooting the pistol, it's not noticeable, nor is the finish half a$$ed on the 19X. Personally, it's the best shooting Glock 9mm pistol they make.

Well, the obvious question; does the purplish stuff wipe off? As others have noted, the copper stuff is factory antiseize, to be left on for break in.
Never saw (or at least noticed) the purple business on my 'blued' Glocks.
Moon

No, the purple does not wipe off. The finish on the 19x is nPVD. "Blued" Glocks as you called them, are a black Tenifer finish. Different processes. I'm unsure if the purple is some type of treatment within the process to get the final Coyote gold color finish, or from the heat treating of the slide during finishing.

gralewaj said:

I'm unsure if the purple is some type of treatment within the process to get the final Coyote gold color finish, or from the heat treating of the slide during finishing.

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Done by, or for, LSU fans.

Purple pig nose

It's clearly a heat treat.

It's on the inside, I can't see why it would matter at all? Not too long ago, CZ barely even machined that area. Looked like it was machined with a chisel. (no longer though)

giggitygiggity said:

I bought a G19x about a week ago. I shot it yesterday and when field stripping, The inside of the slide looked like there was an issue with the coating (coating sediment near striker channel and a purple/blue color near the front). I’ve attached some pics. I’ve also emailed Glock. For other G19x owners, is this normal? Thanks!View attachment 1037806View attachment 1037807

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Not sure if you know this, but you should always clean the Packing grease out of new guns before you shoot them.