Problems re-installing safety in CZ-75 Compact

[apheod]

Hi all, I recently bought my first CZ pistol, a 75 Compact. Steel frame, DA/SA with left side safety only.

I like the trigger, but coming from a Bruce Gray worked Sig P229, it needed help. Thanks to the modularity of this weapon, I can go little by little and make it exactly how I want it, so I went to CZcustom.com and started with a narrowed CZ Shadow hammer, 15# mainspring, Shadow extended slide release and VZ grips. I called to place the order and explained my specific weapon, so all of the parts should be compatible.

Last night, I detail stripped it and cleaned it (it is used, and pretty filthy inside) and installed the new parts, polishing a few areas while I was in there. I read the tutorials on CZ trigger work, and have done them before on Glocks, Kahrs, M&Ps, and XDs, so I didn't get carried away with metal removal. I did not strip down the sear assembly, just blew it out with Breakfree.

When I went to re-install everything, I had a heck of a time getting the safety to go back in, but I've read that can happen. Once I finally got it in, I am left with a stiff safety, stuck in the off position. I haven't fired it, but in dry fire and cycling, everything else about the weapon seems to be in order. It is not seeing live ammo until I get this figured out.

I removed the safety and put it back in twice, with the same problem and similar difficulty installing both times. It looks like the piece in the sear that lifts to clear the safety when the hammer is cocked isn't coming back far enough. Do I need to move it manually, or remove and bend the omega spring keeping it under tension so the spring holds it higher? Thanks so much for any help.

[Tok36]

There have been a few times that i have had issue installing the safety, one was when i forgot to position the sear correctly and it was jammed under the hammer. You stated that you could dry fire yours so this is not the case.

I have also encountered a tighter fit when the sear cage was not seated properly. This happened when i reinstalled it with the hammer spring installed. So the upward tension of the installed hammer spring made it hard to seat the sear correctly.

You mentioned an "omega" spring, is this an a CZ compact omega?

[apheod]

My mistake, I was confused. There is a round spring on Benchmade's Axis knives that is referred to as an "omega spring," I was thinking that was the term for the type of springs commonly found in guns.

This is my first detail strip, and I did install the hammer spring before the safety. I'll try removing it and having another go. Thanks for the tip.

[apheod]

Tried removing the hammer spring, no dice. It still act the same way.

I took a few pictures of where it looks like the safety is unable to rotate underneath of that piece it engages on the sear. The safety is acting like it's in double action even when the hammer is at full cock. I haven't tried bending that spring in the sear for more tension, I'd rather not take it apart if I don't have to.

[Tok36]

Hi all, I recently bought my first CZ pistol, a 75 Compact. Steel frame, DA/SA with left side safety only.

I like the trigger, but coming from a Bruce Gray worked Sig P229, it needed help. Thanks to the modularity of this weapon, I can go little by little and make it exactly how I want it, so I went to CZcustom.com and started with a narrowed CZ Shadow hammer, 15# mainspring, Shadow extended slide release and VZ grips. I called to place the order and explained my specific weapon, so all of the parts should be compatible.

Last night, I detail stripped it and cleaned it (it is used, and pretty filthy inside) and installed the new parts, polishing a few areas while I was in there. I read the tutorials on CZ trigger work, and have done them before on Glocks, Kahrs, M&Ps, and XDs, so I didn't get carried away with metal removal. I did not strip down the sear assembly, just blew it out with Breakfree.

When I went to re-install everything, I had a heck of a time getting the safety to go back in, but I've read that can happen. Once I finally got it in, I am left with a stiff safety, stuck in the off position. I haven't fired it, but in dry fire and cycling, everything else about the weapon seems to be in order. It is not seeing live ammo until I get this figured out.

I removed the safety and put it back in twice, with the same problem and similar difficulty installing both times. It looks like the piece in the sear that lifts to clear the safety when the hammer is cocked isn't coming back far enough. Do I need to move it manually, or remove and bend the omega spring keeping it under tension so the spring holds it higher? Thanks so much for any help.

I missed the bold part the first time i read your post. Changing the CZ stock hammer can effect the functionality of the safety due to a difference in geometry in the custom hammers. Once a custom hammer is installed the safety leg of the sear (the little arm that is no longer clearing the safety) can require fitting. This is a common side effect of CZ hammer replacement.

As i understand it you have a few options. You can do the fitting your self (i have not tried this myself, i might call CZC for a little guidance here but it seams doable). You can also acquire an adjustable sear from CGW. This drop in sear has an adjustable set screw added to the end of the sear safety leg (i would also call CGW to confirm thet this product works with the CZC hammer i have only used the Adj. Sear with CGW hammers).

Adj. Sear (Part#AS-B)
Bottom of this page: http://www.cajungunworks.com/cgw_race_hammer.html

Great pictures btw. Sorry i missed your comment about changing hammer the first time.