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CZ PISTOL CLUBS => Compact CZ 75s => Topic started by: kabong57 on November 27, 2023, 06:03:01 PM

Title: Swapping Uppers ?
Post by: kabong57 on November 27, 2023, 06:03:01 PM

Tried searching but couldn't find the right description. Swapping 2 uppers (barrel and slide with matching numbers) on a PCR. Is it basically true that if it "Racks" and "Locks Up", it should be good to go ? If not, what else needs to  be checked ?

Title: Re: Swapping Uppers ?
Post by: bigdave24 on November 27, 2023, 10:18:45 PM

Should be fine.

Title: Re: Swapping Uppers ?
Post by: Lock-n-load on November 29, 2023, 10:08:10 PM

Never had a problem swapping uppers on cz”s

Title: Re: Swapping Uppers ?
Post by: M1A4ME on November 30, 2023, 08:24:15 AM

I've always "worried" about accelerating wear on the slide lock shaft when swapping barrels. 

Each barrel may contact the shaft of the slide lock in a different spot and the shape of the contact surfaces is probably different one barrel to the next.

I do have an old P07 "upper".  I ordered a new slide stop to go with it.  When I run the 9MM top on the .40 frame I also use the "matching" slide stop.  That way the barrels wear against the slide stop shaft in the same spot all the time.  And wear in together.

Might not be anything to worry about but I know if you go into some machines and replace one piece both it and the pieces it connects to will wear faster than the other pieces that have worn together since start up.

Title: Re: Swapping Uppers ?
Post by: kabong57 on December 02, 2023, 02:13:31 AM

Thank You for the thought. I do have spares so easy to do.