cz shadow trigger upgrade?

diagnostic

diagnostic

New member
EE Expired
Rating - 83.3%
4   1   1
Location
montreal
Did a little searching, but with all the shadow talk online, Im getting allot of non relevant results.

Does anyone know if theres a trigger enhancememt kit, or upgraded parts for the shadow? The factory trigger is already pretty good, Im wondering if it can get any better..
 
15 or 13 lb mainspring will make the trigger pull a bit better and some selective greasing of the underside of the trigger bar.
 
can you put the competition hammer in it? if so its a huge upgrade by itself, it reduces trigger pull and shortens the reset, gives a much cleaner break.
 
The competition hammer makes a bit of a difference,
but do not get caught with the cut springs if you
are shooting in IPSC matches. I had the competition
hammer in mine but put the stock one in to conform to another rulebook.
 
Does the Shadow have an overtravel adjust on the trigger? If not, you can drop in an 85 Combat trigger.

You can also convert it to single action only... :)
 
JayCarver said:
Will dropping to a 13lb mainspring have a big effect on the single stage pull weight or mostly just the double stage?
Click to expand...

It actually affects both equally. But as a %. It dropped my DA pull from something like up around 8.5lb down to just a little under 6lb. The SA pull similarly went down from up around 4# to around 3'ish#.

Before I knew about the IPSC "no cut springs" issue I clipped my spring as mentioned until I was down to 5.2# for the DA pull. The SA pull was so light that I really had to watch my trigger finger discipline. I also got the occasional light strike in DA mode. If you study how the hammer is pulled back and release for DA vs SA you'll see that the hammer stroke isn't as long with a DA pull. That slight loss of travel, and thus mainspring energy, was just enough to produce about a 10 to 15% fail to fire in DA mode with the clipped spring.


Another gain in trigger pull can be had by reaching in and over extending the trigger return spring so it has somewhat less return force. The trigger spring alone requires a little over 2 to 3 lbs of pull to move the trigger (it was a few years back and I don't recall exactly how much it was). With some CAREFUL pulling back of the exposed leg you can deform it just enough that you get the return pull down to around just over 1 lb. Warning though, do this with care and control to over extend it back in small increments going a little more each time then test. If you go too far, and it doesn't take much, you will end up with a floppy trigger and need to pull the trigger pin out to allow you to get to the spring to bend it back a little and restore the return tension. But when you get this step just right it's like a free 1lb reduction.

There's some other work you can do as well if you're in an event that requires a DA first shot. The trigger bow has a little "foot" that runs on a sloping portion of the frame back near the action block. It's the foot which lifts the bow up and releases the hammer. Polish the end of the foot and the face of the frame. Smear a touch of grease on that. It'll smoothen the DA pull up neatly.

Another point which I've not seen in any online information is the small V grooves on the bottom of the trigger bow. These grooves are roughly cut so the contact points jump over the cutter marks. Smoothing the grooves with a sharp stone really aided in smoothening up the gritty feeling of the DA trigger mode.
 
Last edited:
If you're going to do more than swap parts, there is a pretty comprehensive DIY trigger job thread over here:

w ww.czfirearms.us/index.php?PHPSESSID=21544e778f7293aa577d9155c49f5374&topic=42644.0
 
You must log in or register to reply here.
Back
Top Bottom