Ash said:
How does the firing pin block come out, then? And why, then, does the CZ-85 Combat NOT use the roll pin, if that pin serves only to retain the firing pin? The 85 Combat lacks both the firing pin block and the roll pin. On CZ pistols, it exists only on B models.
The firing pin comes out when you drive out the firing pin retention roll pin. It's that simple. (You cover the end of the slide so that the liberated firing pin doesn't fly across the room...) The retention pin goes back in pretty simply. You don't need to take it out ALL THE WAY.
I think CZ is now using a solid pin on newer models, by the way, so they may not call it a "roll pin" any more.
It's important to have the firing pin itself turned right when you reinstall it, so that the retention pin can slide along an indented area on the top of the firing pin. You can see this in the parts diagram.
The CZ-85 Combat is, in effect, a pre-B. It uses a firing pin stop (a plate) at the end of the slide, to retain the firing pin. As you note, the 85 Combat does not have a firing pin block. (I have an 85 Combat, and have had a number of pre-Bs over the years.) The 85 B does have the block and does not have a firing pin stop. By not using the firing pin block, CZ had to add other features to meet the "POINTS" standard required for import into the U.S.. That's why the CZ-85 Combat has an adjustable sight.
The firing pin retention roll pin
ONLY retains the firing pin in the B models. This can be seen by examining the parts diagram. And, yes, the firing pin retention roll pin exists only on the "B" models. (None of the B models use a firing pin stop plate.)
If you haven't already done so, you might find it useful to visit the CZ Forum
www.czfirearms.us/ There's a lot of good information in the FAQ area, and you'll have access to some real authorities on the weapon and it's development.
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