The Original CZ Forum

CZ PISTOL CLUBS => CZ75, 75b, 75 SAO inc the Transitional => Topic started by: denc on May 21, 2023, 12:31:58 PM

Title: Question on Cz75B firing pin block
Post by: denc on May 21, 2023, 12:31:58 PM
Hi all!

Long time lurker first time poster. (Actually second if you include the new members board).

Thinking about getting a Cz75B and Cz75B Compact down the road.

Just have a question on decocking these pistols:

If I keep the trigger depressed until the hammer is fully decocked against the slide (as required in IPSC production class) then release the trigger, is the firing pin block fully re-engaged and is the pistol drop safe again?

Also hope I am posting in the correct board  ;D

Thanks in advance for any input.
Title: Re: Question on Cz75B firing pin block
Post by: Wobbly on May 21, 2023, 03:39:14 PM
My experience is this: If you have a decocker then depressing the trigger isn't required. By using the decocker the hammer drops to a "half cock" position, which is so low, it's more like a quarter lock. That is to say, for all intensive purposes, the hammer is fully decocked. I never had am RO ask me to do more than that.

In this very low hammer position the gun is drop safe. Others will probably add more.
Title: Re: Question on Cz75B firing pin block
Post by: Rmach on May 21, 2023, 07:17:25 PM
Hi all!

Long time lurker first time poster. (Actually second if you include the new members board).

Thinking about getting a Cz75B and Cz75B Compact down the road.

Just have a question on decocking these pistols:

If I keep the trigger depressed until the hammer is fully decocked against the slide (as required in IPSC production class) then release the trigger, is the firing pin block fully re-engaged and is the pistol drop safe again?

Also hope I am posting in the correct board  ;D

Thanks in advance for any input.

I'm pretty sure the firing pin block should be engaged after releasing the trigger and manually decocking.  That was a very good question.
Title: Re: Question on Cz75B firing pin block
Post by: M1A4ME on May 21, 2023, 08:04:03 PM
I could be wrong but I thought the real purpose of the firing pin block was to keep the firing pin from moving forward hard/fast enough to set off the primer of the round in the chamber if you dropped it on a hard surface from a height of 6 ft. or more.  I remember some of us (the guys who carried 1911s for duty) laughing as we tried to come up with various ways a 1911 could be dropped from your hand or you holster from a height of 6 ft. or more on a hard surface and strike muzzle first.  The muzzle first part would be sheer chance.  The height of 6 ft. or greater would be pretty much on purpose.

One guy did come up with the "what if you were on a loading dock and you missed your holster and let go of the pistol and it fell to the pavement below the loading dock (that could be 8 or 9 ft. or more)." 

None of us bought the new Series 80 pistols.  We kept our old Series 70's and like them.
Title: Re: Question on Cz75B firing pin block
Post by: SoCal on May 22, 2023, 02:08:50 PM
Yes if you de-cock a manual safety the firing pin block is engaged as soon as you fully release the trigger.  The firing pin block is independent of the hammer position.
Title: Re: Question on Cz75B firing pin block
Post by: denc on May 23, 2023, 06:45:18 AM
Thanks for all your replies. I am getting the manual safety versions (no decocker). Now I think my mind can rest easier knowing that the gun is still drop safe after decocking it this way.
Title: Re: Question on Cz75B firing pin block
Post by: mlazarus on June 23, 2023, 12:13:15 PM
https://youtu.be/L7GDUpImycQ

A quick video on decocking and why it is important to release the trigger pressure prior to allowing the trigger to move fully forward.