Ahreeves Posted August 17, 2022 Share Posted August 17, 2022 On the Czechmate, the compensator does not line up to the slide by hand. It needs another 3/4 of the barrel turning on those threads to line up to the slide. I can only do that using a heavy padded desk vise and my hand turning it slide/barrel. I'm curious if the compensator has to fit snugly or if the 3/4 turn backing off the barrel will make it too loose. I would like to hear some thoughts, please. Quote Link to comment Share on other sites More sharing options...
Sarge Posted August 17, 2022 Share Posted August 17, 2022 Try backing it off. Comp and slide do not touch. Piece of paper should fit between Quote Link to comment Share on other sites More sharing options...
Dirty_J Posted August 17, 2022 Share Posted August 17, 2022 Just now, Sarge said: Try backing it off. Comp and slide do not touch. Piece of paper should fit between 100% this. But 3/4 of a turn does seem excessive. Quote Link to comment Share on other sites More sharing options...
Sarge Posted August 17, 2022 Share Posted August 17, 2022 1 minute ago, Dirty_J said: 100% this. But 3/4 of a turn does seem excessive. Actually doesn’t it just mean back off 1/4 turn? Quote Link to comment Share on other sites More sharing options...
Dirty_J Posted August 17, 2022 Share Posted August 17, 2022 1 minute ago, Sarge said: Actually doesn’t it just mean back off 1/4 turn? Ah. Yeah. You could be correct. in that case… totally reasonable. Quote Link to comment Share on other sites More sharing options...
yigal Posted August 17, 2022 Share Posted August 17, 2022 tap and die set M14x1 can fix this. Quote Link to comment Share on other sites More sharing options...
Ahreeves Posted August 17, 2022 Author Share Posted August 17, 2022 Got it, thanks. Here's some pics of the finished work. Hand tight now. This way I can field change the weapon to unlimited/comp. One quicky. The firing pin has a slot. Is that so debris has a way out? Quote Link to comment Share on other sites More sharing options...
Ahreeves Posted August 17, 2022 Author Share Posted August 17, 2022 Quote Link to comment Share on other sites More sharing options...
Ahreeves Posted August 17, 2022 Author Share Posted August 17, 2022 Quote Link to comment Share on other sites More sharing options...
Dirty_J Posted August 17, 2022 Share Posted August 17, 2022 The comp should only be hand-tight anyway. The guide rod retains it. Quote Link to comment Share on other sites More sharing options...
Ahreeves Posted August 17, 2022 Author Share Posted August 17, 2022 I agree. Thanks. When I spoke with CZ shop (607) they said just open up the threads a little. Which I did with some oil. they mentioned the guide rod, too. Quote Link to comment Share on other sites More sharing options...
Hollow-Point Posted August 24, 2022 Share Posted August 24, 2022 (edited) On 8/17/2022 at 4:22 PM, Ahreeves said: Got it, thanks. Here's some pics of the finished work. Hand tight now. This way I can field change the weapon to unlimited/comp. One quicky. The firing pin has a slot. Is that so debris has a way out? Curious on the firing pin question myself… Edited August 24, 2022 by Hollow-Point Wrong pic Quote Link to comment Share on other sites More sharing options...
yigal Posted August 25, 2022 Share Posted August 25, 2022 On 8/24/2022 at 3:47 AM, Hollow-Point said: curious on the firing pin question myself… This is a way of thinking and designing weapons since the days of communist times , that the weapon will work in difficult conditions and the dirt will not cause malfunctions. Quote Link to comment Share on other sites More sharing options...
slavex Posted August 25, 2022 Share Posted August 25, 2022 I believe the cut in the firing pin is for models with firing pin safeties. It's a part shared across multiple models of guns Quote Link to comment Share on other sites More sharing options...
yigal Posted August 25, 2022 Share Posted August 25, 2022 1 minute ago, slavex said: I believe the cut in the firing pin is for models with firing pin safeties. It's a part shared across multiple models of guns A friend had CZ 75 from 77 and that part hasn't changed since. I also had cz 75 from 86 and it's the same part with the same slot. Quote Link to comment Share on other sites More sharing options...
Hollow-Point Posted August 25, 2022 Share Posted August 25, 2022 So if the firing pin is removed, it’s has no correlation in which way the groove is facing? Just curiosity… Quote Link to comment Share on other sites More sharing options...
Currywurst Posted August 25, 2022 Share Posted August 25, 2022 One more guess: Designed to work underwater? Like the once famous special slotted firing pin spring cups for Glocks? Quote Link to comment Share on other sites More sharing options...
slavex Posted August 29, 2022 Share Posted August 29, 2022 it's for the firing pin safety like I said above, one pin design across multiple guns. you'll see aftermarket firing pins for the Shadow, TS, Czechmate, Shadow 2 etc that don't have the groove as it's an extra step for machining. But since CZ makes guns that need it, they just make one pin across the board. It's orientation in guns without firing pin blocks doesn't matter, and, if you want to play a game, put it in, in a specific way, and then fire 100 rounds and see if it's still facing the same, it probably won't be. Quote Link to comment Share on other sites More sharing options...
yigal Posted August 29, 2022 Share Posted August 29, 2022 (edited) Edited August 29, 2022 by yigal Quote Link to comment Share on other sites More sharing options...
yigal Posted August 29, 2022 Share Posted August 29, 2022 53 minutes ago, slavex said: it's for the firing pin safety like I said above, one pin design across multiple guns. you'll see aftermarket firing pins for the Shadow, TS, Czechmate, Shadow 2 etc that don't have the groove as it's an extra step for machining. But since CZ makes guns that need it, they just make one pin across the board. It's orientation in guns without firing pin blocks doesn't matter, and, if you want to play a game, put it in, in a specific way, and then fire 100 rounds and see if it's still facing the same, it probably won't be. Quote Link to comment Share on other sites More sharing options...
Foxj66 Posted August 29, 2022 Share Posted August 29, 2022 9 hours ago, slavex said: it's for the firing pin safety like I said above, one pin design across multiple guns. you'll see aftermarket firing pins for the Shadow, TS, Czechmate, Shadow 2 etc that don't have the groove as it's an extra step for machining. But since CZ makes guns that need it, they just make one pin across the board. It's orientation in guns without firing pin blocks doesn't matter, and, if you want to play a game, put it in, in a specific way, and then fire 100 rounds and see if it's still facing the same, it probably won't be. The pin is different for FPB guns as they are retained by the roll pin. I have always been led to believe it is just a debris channel. Quote Link to comment Share on other sites More sharing options...
yigal Posted August 29, 2022 Share Posted August 29, 2022 34 minutes ago, Foxj66 said: The pin is different for FPB guns as they are retained by the roll pin. I have always been led to believe it is just a debris channel. Quote Link to comment Share on other sites More sharing options...
slavex Posted August 30, 2022 Share Posted August 30, 2022 yeah I've been told that as well, but was told more often it had to do with one step of the firing pin safety machining, now seeing the pic above, I'm going to say I was wrong on which one to believe. Debris groove it is now! Quote Link to comment Share on other sites More sharing options...
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