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Randy Lee

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About Randy Lee

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    Randy Lee

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  1. 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?
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. We haven't tested it with other parts as it opens up a whole can of worms in terms of liability for all parties involved. Our kit was designed to work around the idea that the hammer should maintain maximum rearward travel to increase primer ignition. I believe the short reach systems may shorten the hammer arc which might reduce ignition for some types of ammunition. What I can say is that I do not recommend extended firing pins with our kits.
  7. Hi Tok, Both the sear and hammer on the 75B kit are narrower. The sear needed to allow the fpb lifter, so that the inherent safety system could be preserved. A large percentage of our customers don't shoot competition but rather use their pistols for carry or self defense, so we opted to make the sears specific to each variant so that pistols with the FPB could maintain all factory safety values. The 75B slides have a narrow window for the hammer than the Pre-B series. While we could have just made one hammer, I think the cosmetics would look odd as viewed from the rear with a narrow hammer in the wider window of the Shadow 2. I personally don't like the use of a spacer in the sear cage and since it invites people to deactivate a factory safety, that would open up my company to unnecessary liability. Our springs are roughly equivalent to an 11.5 mainspring and the heavier being about a lb heavier. Both CZ Custom and Cajun offer additional weights for people to try. For our testing the springs we provide offered us the best linear DA pull and SA weight range for a competition while maintaining reliable ignition with CCI primers. The heavier rated purple spring is included for carry or in case someone is using harder primers. We designed the hammer and sear so that they should fit in most guns without the need to fit the safety or safety leg on the sear. That being said, we cannot anticipate all the tolerance stacking possibilities from gun to gun so there is always the possibility that dressing down either surface might be necessary. This should only require .001" - .002" of material removal. This is assuming that the gun has the original safety as fitted by the factory. -Randy
  8. I believe it might be time to shed a little light on the kits that I had a hand in designing. I also need to emphasize that the descriptions and function of our parts in one early post are absolutely wrong and were based upon pictures of our parts. I know this because our parts had not been released yet. For a little background (since I assume most here do not know who I am) I started working on guns some 30 years ago, beginning with refining the DA on Smith revolvers. I believe that qualifies me to know what constitutes a good DA trigger pull. From there, the 1911 and Browning Hi-Power work I have done led me to understand what a good single action should feel like. While trigger "feel" is subjective, it is a good place to start when you decide to engineer a fire control system. I use the term "system" because the hammer, sear, mainspring and firing pin spring were designed to work in conjunction with one another and in balance. The CZ trigger system by design has tremendous mechanical advantage by design. That translates into the potential for very light DA and SA pulls. But that can sometimes get people into trouble-myself included. As I so poorly expressed in front of the camera, this is one of the reasons I wanted to make our kit. We started the project by using a TriggerScan on a factory stock Shadow 2. The device digitally maps out force over the distance of the trigger stroke. It shows us exactly what is happening during both DA and SA pulls. This allowed us to set the geometry of the hammer to provide a very linear stroke in DA. So to say that our kit does nothing for the DA is incorrect. Bringing up the pressure wall for single action is more complex that just raising the SA hooks or lowering the sear bedding surface. Doing so can often lead to timing issues especially when you consider tolerance stacking from gun to gun. The compound leverage of the pivoting trigger system tends to overcome the static holding force of the sear against the hammer hooks- especially if you want to maintain a 5 lb double action. The result is a spongy single action that is usually at the exact same weight as when you started. So again, information portrayed earlier about our hammer and sear geometries are inaccurate. Unless you have access to an optical comparator or an OMM like we do, you cannot see what we have done to achieve the increase in SA wall pressure. The hook and sear profiles are done by wire EDM so that the relationship between the two are not simple angles. The surfaces act more like fitted puzzle pieces than what you are used to seeing in a 1911 type hammer/sear relationship. It was the only way to reduce some of the compound advantage of the CZ trigger assembly without making the SA feel like crap. The SA actually feels good to me and suits my trigger prepping style as I can feel the defined break point. In order for us to bring any trigger kit to market, it also has to pass our drop test which consists of dropping the gun from a height of 6 feet onto a concrete slab in 27 different orientations. In this case, it was painful to watch a Shadow 2 be dropped 54 times since it had to be dropped in DA and SA modes. My final words are these: Both CZ Custom and CGW make excellent parts, and I am sure that many reading this are more than pleased with their parts. I consider Angus and Stuart over at CZ Custom friends. In fact, I just received my A01-LD which was hand delivered by Angus, and it is truly an exceptional pistol. I still order and install parts from both CZC and CGW into friend's pistols when they want the light DA/SA setup. We are just another option for those who want a light DA but slightly heavier SA. -Randy
  9. Hi Quirk, The barrels will fit, however they did change some of the slide dimensions so some additional fitting may be required. If you look at the interior side walls of the slide where the ejection port is, you will see an appreciable step in the machining closer to the breech face. Our barrels run .600" nominally when you measure the width of the barrel's chamber area. With a tolerance of .003+/- that means our barrel will range between .597 and .603 wide in that area. The M2.0 tightened up the spec where you see the step, so that .600 is the max width allowable. This means that you might have to sand or polish down the sides of our barrel by 0.002 on each side in order th let the barrel slip past the step. The factory tightened up this spec to increase torque stabilization of their barrel, which helps improve consistency shot to shot thereby improving accuracy. While there may be a bit more fitting required for our barrel in the 2.0, the tightening of the factory specs helps ensure that our barrel locks up consistently in the slide across their slide dimensional tolerance spectrum.
  10. Hi all, We are still setting up shop and getting our tooling together. Making one or two is one thing, but making the slides in production numbers is a whole other ball of wax. I will update you as soon as I have good news. Thanks!
  11. Along with what others have mentioned, another thing you should check for is barrel springing. If you invert the slide and drop the barrel in, press on the bottom lug and see if the bottom lug springs back as you release finger pressure from the bottom lug. As the barrel heats up, the springing will affect group size, usually in the vertical axis but it can also show up as flyers. If springing is present, you may need to have your gunsmith dress the top 12 o'clock position of the muzzle where it is making contact with the inner top of the slide's barrel channel. -Randy
  12. Our slide development is in it's infancy, so you never know what might show up in the near future... . There are a lot of new projects in the queue now that we are in a free state. -Randy
  13. Once we are in full operation in AZ, anything is possible... :-)
  14. We are still in the testing phase as wea re still in the moving process. I should be able to report back with an update around the holiday season.
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