CZ75B copper on slide stop

[gshamray]

I found copper deposits on the CZ 75B slide stop after using CCI Blazer Brass 9mm 115gr. I did not see it before while using same kind of CCI Blazer Brass 9mm but 124gr.

Is that normal?

 

[4n2t0]

Copper anti-sieze paste from the factory.

 

[sixty9santa]

Why would they deem it necessary to put copper anti-seize there of all places?
I understand why copper, solvents can remove it but, why anti-seize?

 

[.30/06 FTW]

Can’t say I recall seeing that on any of my CZs.

 

[Scott_N]

My CZ 75B hasn't ever shown that either.

 

[Dsiwy]

Copper Anti seize used to lube the pin of the slide catch. Why? because the barrel lug cams on it during locking and unlocking.

Glock is using copper anti seize on their guns too

 

[gshamray]

Ok. Thanks for explanation. So that copper actually has to be there.

I don't think that is a paste. I am pretty sure slide stop was black before. It looks like it is a layer of copper coating which was under that top black coating. And it looks to be pretty thick because it doesn't easily come off with copper solvents.

Should I buy an anti seize paste such as Permatex Copper Anti-seize and use it on slide stop or just keep lubing it with regular gun oil?

 

[4n2t0]

Going forward regular lubricant will do just fine.

 

[Big JD-From the hills]

I suspect the pin is braised to the stop on the newer production stuff?? I know my spare for my shadow I recently picked up looks like there is braised joint with a hint of copper