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Thread: CZ75 TS competition hammer install..

  1. #1
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    CZ75 TS competition hammer install..

    For the said installation, first we need to remove the magwell. Well, why is removing a magwell even a task, keep reading:

    The correct sequence is

    1. Remove grips
    2. Remove cross pin (part 13)
    3. Push down the part71 (the nub) and main spring housing plug. part 71 is attached to the plug! Push it hard and slide back the magwell simultaneously. A few heavy blows to the magwell (take care of frame finish!) and it pops back out.
    4. Put back the cross pin
    5. Take out the mag break.
    6. Remove cross pin
    7. remove main spring housing plug and change the spring.

    Here is the parts diagram, for those not exactly at verse with all the numbers above:

    http://www.cz-usa.com/assets/files/cz75ts_en.pdf

    Might have been able to pull out the mag break without putting back the cross pin, but the above worked. Reassembly was easy:

    1. Press the plug in
    2. Insert the cross pin, and get the plug fixed
    3. Fix the mag break
    4. remove cross pin
    5. Press down the plug and the nub while tapping the the magwell back in.
    6. Once magwell is on the body of the plug, then use a pointed non-marring punch to push the nub down hard, and slide the magwell over it.

    You will need a non-marring conical punch, or a will have to use the handle of your hammer smartly to push the nub/plug back in.

    The job would have been easier if I had a vise, as without the vise, there was a strong need for a third hand!
    Thanks again

    Installed is a 13# main spring, extended firing pin and reduced power firing pin spring Although in due honesty, the difference in trigger feel is negligible, and almost not noticeable for most shooters.

  2. #2
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    Then comes the competition hammer installation part.

    The process was not very complicated, but required first the removal of magwell described above (now you see why the magwell removal was actually a task!)


    Then, had to remove the safety, left (need to lift the sear spring out of the slot when viewd from top) and right side, (it is easier if you remove the sear cage in between respectively), and except for the trigger group, everything has to come apart for the hammer to be extracted out. While this was not very difficult, putting back was a bit more tedious. A few installation aid videos were re-reviewed in the 90 minutes required for some tricky parts.

    The safety-sear connection area need removal of some material. I removed (actually more like a bit of filing only) a very small amount from the safety. The safety engages now a with a bit of effort, less that immediately after hammer installation, but more than original condition. I think it should now improve with wear, or I could just redo the filing after a few sessions.

    RESULT:
    A better looking TS
    A drastically improved trigger, virtually creep free
    A very good looking, smart hammer
    Well, a better looking TS

    Below is the list of mods now:

    -13Lbs main spring, and 13Lbs recoil spring
    -reduced power firing pin spring
    -extended firing pin
    -competition hammer
    -aluminum custom grips with grip tape
    -(adjustable sights are waiting to be installed, but have not felt the requirement yet, so they wait in the closet)

    PS
    Usama came over, and lended the much desired 'third hand'; you see, you have to hold with one hand, press with second, and install with the third! A vise is what I don't have, and it would have been possible to do the mods alone had I one, but a vise does not do much gossip, does it?

    TOOLS
    -Punch (roll pin) 1/16", 3/32" , 1/8"

    -Polymer hammer for smacking out the magwell

    -Starter punch kit

    -The handle of the hammers for pressing down the plug, or any thing that does not damage finish, and can be used to hold/push the plug inside.

    -Nose pliers

    -Spring hook kit (to fiddle with sear spring, hammer retaining pin, and safety indents)

    -The Third Hand (courtesy Usama bro)

    I was wondering what the trigger of a creepy P01/75D compact can be converted to if a competition type hammer is installed..any ideas?
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    Last edited by coolbox18; 19-11-2011 at 10:50 PM.

  3. #3
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    The resulting trigger break in this weapon, resulted in the thirst for a czechmate being quenched (for the time being.., although the cost a CzechMate does an equally good job!)
    Attached Images Attached Images   
    Last edited by coolbox18; 19-11-2011 at 10:46 PM.

  4. #4
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    COOL BOX
    You have done a great job.
    A CZ TS can be made nearly as good, by the addition of the hammer in the way you have described. In fact only highly skilled shooters can feel the difference. The TS and the mate can be made compare able with the effort you described. Bravo n keep it up.
    JU

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    PakGuns Elite! AK47's Avatar
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    Great job done, Coolbox bro, not everyone would venture upon this "Ph.d" assignment! Excellent effort, keep it up.

    Regards.
    Laws that forbid the carrying of arms...disarm only those who are neither inclined nor determined to commit crimes...Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage, than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.

    "Take your time and deliberate, but when the time for action has arrived, stop thinking, and go in. "

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    Senior Moderator 12GAUGE's Avatar
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    nice job buddy. keep up the good work. would you be kind enough to explain the reason for opting a 13lbs mainspring and 13lbs recoil spring mod.

    Regards.
    "The possession of arms is the distinction between a freeman and a slave."
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    @Skeeter sir,
    Thankyou for the encouragement. Yes, it can be made comparable to czechmate, and only skilled shooters will know the difference in trigger. I can further fine tune this, there is room to cut height of hammer hooks by .2 or .3mm, but I am happy the way it is. This is already drastic improvement over the standard TS trigger.

    @AK47 sb,
    This was just graduation, PhD is in the CZ decocker models! (read P01..)

    @12Guage bro
    the 13Lb combo makes cycling of weapon faster, which makes it return on target faster, for practical/rapid shooting, which we often do drills of, at the ASCC range. Also, I noticed that it is much easier to rack the slide with these lighter springs, so when competing in stages where one has to load a weapon, this is a definite must. The 13Lb main spring reduces the hammer strike force, which can lead to light primer strikes. That is taken care of by extended firing pin and reduced power firing pin spring.

  8. #8
    Big & Sexy Moeen's Avatar
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    Salam All,
    WOW, VERY Well done. Congratulations, looks like I will need to visit you for the hammer installation soon. Very very well done indeed.
    \"In a world of compromise... Some Don\'t!\" Heckler & Koch

    \"A well regulated militia being necessary to the security of a free State, the right of the People to keep and bear arms shall not be infringed.\" Bill of Rights - 2 Amendment of the Constitution of U.S.

  9. #9
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    Very good work done there.. keep it up Coolbox bro.. now your TS is at par with the Czechmate.

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    @Moeen sb
    You are most welcome. When ever you are planning to be in town (Karachi), send me an email.
    (although I am to believe you can do this yourself too...). Thank you for the praise.
    If you are in the process of ordering parts, please also order pin no.9 for hammer to strut assembly. These pins are almost unusable once removed. If you order a strut alongwith, (like I did), then you can have complete assembly of hammer, strut (and the pin) in spare for future needs (or if i break the new hammer while installation!)

    @Aquarius bro
    Not yet a Czechmate, but yes, the trigger is about the same. Thank you.

  11. #11
    Senior Member Sami's Avatar
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    A.O.A, Great job Dr. Do Cool. I was expecting this sort of improvements from your side as soon as you are into serious target shooting, this also disclosed the mystery that why did you intend to let go your Shadow Sp01. Keep up the good work, thanks for sharing. A.H
    A horse gallops with his lungs, perseveres with his heart and wins with his character.

  12. #12
    Big & Sexy Moeen's Avatar
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    Salam All,
    @Coolbox18 - I already had mine customized with blue parts over a year ago and am now thinking about a new experiment with this TS by cutting the front as in the Czechmate and then adding a front weight to it.... lets see how that goes.
    \"In a world of compromise... Some Don\'t!\" Heckler & Koch

    \"A well regulated militia being necessary to the security of a free State, the right of the People to keep and bear arms shall not be infringed.\" Bill of Rights - 2 Amendment of the Constitution of U.S.

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    @Sami sb
    The shadow is with me..

    @Moeen sb,
    Yes I had your blue accented TS in mind. I would like to have that trigger now, although not blue color!
    Do keep us posted on how the TS turns out.

  14. #14
    PakGuns Elite! Trigger_happy78's Avatar
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    Very well done coolbox18 bro, keep it up.

  15. #15
    Supreme Member HussainAli's Avatar
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    Dear Cool Box Bro, Wounderful ............cool looking New Hammer !!!! Hope you will get a difference in sound & Acqurecy too !!!

    Regards
    A stitch in time saves Nine

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    Senior Moderator Denovo87's Avatar
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    Great job CB bro, now start looking for phantom's bits to make its trigger happy
    Keep your fears to yourself, but share your courage with others.

  17. #17
    PakGuns Photographer Moderator! Naveed_pk's Avatar
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    @ Coolbox bro Awesome job done I remember the old days a person can't even fill the empty mags and Today he is Bullsye shooter and Now a Gunsmith . Keep on going bro

    Regards
    "It's better to have firearm and not need it than to need one and not have it."

  18. #18
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    Trigger Happy
    Hussainali
    Denovo87
    Naveed_pk

    brothers, Thank you.

    @Hussainali bro, there is drastic improvement in trigger, which results in better accuracy. What do you mean by improvement in sound?

    @Denovo sb, unfortunately, the Phantom is not recommended to be fiddled with by CZ people. I dont exactly know why, although other decocker models (P01,SP01 Tactical etc) can have the job done on them. Please note that a decocker model is a pandoras box once opened, and closing is a very very tedious work. Just be ready to fly out to Karachi once you do pop one open, just in case..How do I know? Please feel free to inquire..

    @Naveed bro, you will always be my first teacher. You taught me how to fill mags, disassemble and more importantly reassemble, clean and lubricate weapons, all the very basics. Thank you for the guidance, which has led me into this basic gun-smithing stuff. Next project: 75D compact (yes, decocker model..)

  19. #19
    Supreme Member HussainAli's Avatar
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    Quote Originally Posted by coolbox18 View Post
    Trigger Happy
    Hussainali
    Denovo87
    Naveed_pk

    brothers, Thank you.

    @Hussainali bro, there is drastic improvement in trigger, which results in better accuracy. What do you mean by improvement in sound?
    Brother you are most welcome & please do not mention;

    I mean; That after this replacement.... Dry Fire should sound different & Better??

    Hope so

    Regards
    A stitch in time saves Nine

  20. #20
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    @Hussain Ali bro
    I could not observe any noticeable change in dry fire sound..I dont know if this matters also.

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