Randy Lee

There are many firearms that do not have FPB safety systems that fall into this category. That said, our own testing showed that the S2 with factory fp and spring were drop safe above 4 feet on concrete in the worst case orientation (muzzle down). From a competition perspective, average height of a holstered pistol is less than slightly less than 3 feet (muzzle). All I am saying is that you shift the probability range by using extended firing pins and reduced power f/p springs.

In the Shadow 2, the SA pull weight using a TriggerScan machine measured 2.75 lbs. If a lighter trigger return spring is used my guess is that it would be probably hover around 2.25-2.5 lbs. In the 75 B the factory FPB spring adds resistance and ups the pull weight. Every so often a Shadow SP-01 slide shows up for sale. You can check with CZC or Cajun as they may have sources. One customer in CA I know of was able to get one and competes with it.

That is correct. Couple it with a reduced power or cut firing pin spring and your chances go up even further.

I can only speak to my preferences, as I am sure if you ask 100 other owners they will give you 100 different opinions. So here goes... The CZ trigger system has many of the characteristics that I find desirable in a TDA pistol. Of all the pistols I own that are TDA, my CZs have the smoothest, lightest and most linear pull characteristics for the first DA shot. Since I come from the land of Smith revolvers, I am used to the DA and I guess I find it strangely familiar. In competition, I can get aggressive with the DA on my draw stroke whereas I am usually more hesitant to do so with my 24 oz trigger pulls on my 2011s. There is always an arms race for a gun with lighter/shorter faster resetting triggers. I think that is in part why Cajun and CZC are so popular (the quality of their parts is also part of their popularity). But for me, I see so many people get into trouble because they don't understand the performance or safety envelopes designed into the gun and then set the gun up so that it is running on the edge of safe operation. I have seen over travel stops/take up screws set so short that bump fires occur regularly. I have also seen people tweak on the sear face and hammer hooks to the point they burst fire. People like to tinker and like the 1911 fans, the CZ opens up the opportunity to tweak the gun to your liking-for better or worse. If you are speaking specifically about setting up the gun for competition, then the Shadow/Pre-B sear and disconnectors have the advantage over the B series. The trigger bar will always have to travel farther forward in order to pick up the FPB lifter than the sear reset point and that can make for longer split times because of the increased take up. On my current Shadow 2 and AO-1 I use our hammer and sear with the AO-1 using one of our prototype competition hammers. I set my over travel distance at about .020 so that the sear clears the drop safety ledge on the hammer and reduces the chances of bump firing the gun (the wall before the break also helps with this). I am using the factory disconnectors and I don't think there would be any advantage for me to run super short take up. I suspect that a good majority of shooters fall into my category too. When I ran my SP-01 in Production, I was lucky enough to be friends with the head of product development at CZ-USA who sent me a Shadow slide. Back then CZC was the only game in town, so I ordered a pre-B sear, one of their disconnectors (I prefer the CZC disconnector because it uses the tandem ears like the factory, so the hammer tends to track more linearly along the centerline of the frame) and their hammer. This set up eliminated the FPB system and since the Shadow SP-01 was on the USPSA Production approved list I was golden. The only problem was that due to the abundant leverage of the pivoting trigger system, my pull weight was about 1.25 lbs on the SA. The more trigger work I did on customer guns, the more I found that in tuning the DA to my liking, it was impossible to get a SA pull weight above 1.75 lbs. That's why I designed the hammer and sear engagements on our current kit. With all the tuning done, I was able to get a very stable AND drop safe 3 lb pull.

It will be compatible with our sear. We will probably only sell the hammer to customers who call in. Once I have them back from the finishers, I can let you know that they are available.

Thanks for your appreciation of our hammer/sear in the set. We will be releasing a kit with a new hammer that has the same feel but lighter SA release weight since we have had so many requests. That should be available sometime in March. While I haven't tested our hammer and sear kit with the Cajun parts, if the FPB prevents the firing pin from protruding past the breechface when pressing on the back of the firing pin (have to always add the unloaded firearm part here) it should be safe. But again, the caveat is that we only drop test with our parts and not other aftermarket products. I don't know if I have mentioned it here, but before we release any trigger kit it has to pass our drop test which stringent. We drop from 6 feet onto concrete in 27 different orientations. If you do try the Cajun parts, please let me know how it turns out. There isn't anything that stands out in my mind that says it wouldn't work.

Hi TheIceman, We found that the liability for us is way too high to use or recommend an extended firing pin. In our tests, we have been able to replicate discharges of the gun dropped from 2 feet on a Shadow 2 due to inertia. This is with the hammer in all three positions - hammer down, safety notch and fully cocked. I only use the Shadow 2 as a reference because it has no FPB system like the B series has. Any Shadow or B series pistol where the FPB system is removed and an extended pin is installed can run the risk of this happening. I also know of one individual who had an ND when he eased the hammer to the half cock position and used the trigger to drop the hammer the rest of the way down while making ready. This was with CCI Lawman ammunition, which isn't known to have overly sensitive primers. You might be able to run Cajun or CZC short reset kits with our hammer and sear if you are using their FPB lifters and keeping the FPB safety system intact. The FPB lifter geometry made by both companies most likely will reduce the reset but maintain the safety function. I do know of customers who have removed the FPB systems from their SP-01s in order to achieve the shortest reset and run their guns in competition. We as a manufacturer simply cannot recommend deactivating any factory safety devices. Hope this helps.

Hello, Sorry for the late reply as I haven't been on the forum as of late. Bryce- you are correct. Our springs run roughly 11 and 12 lbs. You can definitely try running CZ Custom or Cajun springs of varying weights to get to your preferred DA/SA weight range. As far as running an extended firing pin, we do not recommend it, especially when combined with a RP f/p spring. We have to drop test from 6 feet onto concrete, and without a f/p block a muzzle down drop can cause ignition even with a factory stock pistol. We have to err on the side of safety. While I don't expect competitors to drop their firearms for that height and in that precise orientation we have to take that into consideration. When you run an extended firing pin, it increases the chances of a discharge from a lower height. Couple that with an RP return spring then you get into a range where it could be possible that the gun discharge from say the height of a holstered gun at a match even if the hammer does not strike the firing pin. To make matters worse, I have had a report from a shooter that had the gun discharge when he dropped the hammer from the half cock notch by pulling the trigger- using factory US made ammo. To me it is just not worth the risk. -Randy

Hello, Yes our kit will work as a SAO by removing the disconnector. If your SP-01 is not a Shadow variant, just make sure that whatever trigger you use has the appropriate amount of pre-travel so that the trigger bar can move forward of the FPB lifter. Thanks for running our kit! -Randy

Update: We are redesigning our Walther SF triggers so that they will be cross compatible with the polymer frames. During testing of the SF, the number one complaint was that our current PPQ trigger sits too far forward to be comfortable for pretty much all the testers who shot the pistol. I think it is related to the increased girth of the frame/grip on the SF. I know it isn't what people wanted to hear, but there is no use selling a trigger kit that a majority of shooters won't like. I will try and update this thread as the project progresses. We will also need to drop test the pistol from 6 feet onto concrete in 27 different orientations. Anyone know where I can get a used unwanted SF for that purpose?

Hmmm... I know that the sample gun is on display this week at the NSSF Range- Retailer Expo, and we usually have it at the NRA Annual Meeting as well as this upcoming year at SHOT. If they invite us, we can definitely see what can be arranged.

It will come with the trigger on a modified trigger bar, trigger return spring and a striker block spring. That is assuming it passes our drop testing protocols.

Our kit comes with 2 mainsprings. The one that was in the display S2 was 11+ lbs, while the purple spring is roughly a pound heavier.

szhttm, we will do our best!

We are currently working on bringing the new Q5 SF trigger kit to market. As some may have noticed, the trigger pull weights on the SF are typically heavier than the polymer frames. This is an obstacle I needed to overcome since this gun in particular was designed for competition. We expect to release the new kit in early September.