The Original CZ Forum
CZ PISTOL CLUBS => CZ SP-01 and variants => Topic started by: Jmoser on December 28, 2018, 03:08:54 PM
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So 6 18 rd factory mags - 1 jumps out freely all the way and the rest need a gentle pull to remove.
Assume this is just a ~.002" tolerance in the mag body preventing it from depressing the leaf spring mag tensioner - is it normal to have variation in mags dropping free or not?
None of 4 Mec-gars fall out either.
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If it is a CZ75 variant, i would pull the grips and see if it still happens.
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Could you tell us more about your gun and magazines?
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Sorry folks - new SP-01 with OEM 18 rd mags. 2 came with gun, 4 bought spare. The one mag that drops clean came with the gun. 4 MecGars all brand new, 2 18 rd and 2 10 rd.
The mags that don't fall clean out do pop down 1/8" or so before hanging up.
Will test grips off and with less tension on grip screws, good thinking.
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The MecGar 18rnd mags are actually 17 or 19 depending on the base plate. Easy to tell because they have a different finish. Those are actually a little fatter than the OEM mags and cause this issue frequently depending on the particular gun. I would suggest this part, I put it in all of my 75's. Makes hammer spring changes easier too.
https://cajungunworks.com/product/24-mag-guide-full-size-hvy-duty-competition/
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I performed some quick measurements on 3 different magazines.
1 OEM, 1 Canik and 1 Mec-gar. They all measured the same ---
Side to side : 0.800 (+/- 0.002) Front to back : 1.252 (+/- 0.002)
Finishes are different, so that could be the issue.
If it remains a problem, an option is to simply remove the "Magazine Guide" all together.
It won't affect the insertion or ejection of your magazines, and won't bring unwanted dirt onto the Main spring (urban myth).
The original use of a "Magazine Guide" was to stop the magazine ejection during an inadvertent press of the magazine release, and gives the shooter the possibility to reinsert the magazine, specifically for law enforcement and military.
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I performed some quick measurements on 3 different magazines.
1 OEM, 1 Canik and 1 Mec-gar. They all measured the same ---
Side to side : 0.800 (+/- 0.002) Front to back : 1.252 (+/- 0.002)
Finishes are different, so that could be the issue.
If it remains a problem, an option is to simply remove the "Magazine Guide" all together.
It won't affect the insertion or ejection of your magazines, and won't bring unwanted dirt onto the Main spring (urban myth).
The original use of a "Magazine Guide" was to stop the magazine ejection during an inadvertent press of the magazine release, and gives the shooter the possibility to reinsert the magazine, specifically for law enforcement and military.
Did you measure a MecGar 17rd mag? Even if you did, your sample size is too small. The issues with these are well documented.
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The MecGar 18rnd mags are actually 17 or 19 depending on the base plate. Easy to tell because they have a different finish. Those are actually a little fatter than the OEM mags and cause this issue frequently depending on the particular gun. I would suggest this part, I put it in all of my 75's. Makes hammer spring changes easier too.
https://cajungunworks.com/product/24-mag-guide-full-size-hvy-duty-competition/
What is the purpose and/or gain for upgrading to this part?
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hmm.. i had similar issue w/ mecgars.. could be mag release spring needs to be bent, and/or grip panels are making contact with mags. mecgars are a hair larger than stock. I also polish the mags where ever they show signed of wear near the mag release hole.
https://www.youtube.com/watch?v=pBlt-tNMX_A
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I had wondered about removing the magazine leaf spring - might give it a try.
Also reminded me of the old school revolver mods where the leaf mainspring on S&Ws was ground into an hourglass profile for lighter force. Could be an interesting experiment if I can pick up a spare CZ mag spring.
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I performed some quick measurements on 3 different magazines.
1 OEM, 1 Canik and 1 Mec-gar. They all measured the same ---
Side to side : 0.800 (+/- 0.002) Front to back : 1.252 (+/- 0.002)
Finishes are different, so that could be the issue.
If it remains a problem, an option is to simply remove the "Magazine Guide" all together.
It won't affect the insertion or ejection of your magazines, and won't bring unwanted dirt onto the Main spring (urban myth).
The original use of a "Magazine Guide" was to stop the magazine ejection during an inadvertent press of the magazine release, and gives the shooter the possibility to reinsert the magazine, specifically for law enforcement and military.
Did you measure a MecGar 17rd mag? Even if you did, your sample size is too small. The issues with these are well documented.
I must apologize to you for not having 20 magazines of each on hand for a more detail dimension sample.
But I am humoring you, and went to measure all of my 4 Mec-gar magazines. All 16rd (I don't see why there would be dimensions differences between 17rd and others), anyway, they all ended up measuring the same, 0.800 and 1.252.
I even loaded them and measured them again, and the width at the cut out for the magazine release increased by 0.005 from all original dimensions. So there is some metal deformation in that area, but it is side to side only, not front to back.
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I performed some quick measurements on 3 different magazines.
1 OEM, 1 Canik and 1 Mec-gar. They all measured the same ---
Side to side : 0.800 (+/- 0.002) Front to back : 1.252 (+/- 0.002)
Finishes are different, so that could be the issue.
If it remains a problem, an option is to simply remove the "Magazine Guide" all together.
It won't affect the insertion or ejection of your magazines, and won't bring unwanted dirt onto the Main spring (urban myth).
The original use of a "Magazine Guide" was to stop the magazine ejection during an inadvertent press of the magazine release, and gives the shooter the possibility to reinsert the magazine, specifically for law enforcement and military.
Did you measure a MecGar 17rd mag? Even if you did, your sample size is too small. The issues with these are well documented.
I must apologize to you for not having 20 magazines of each on hand for a more detail dimension sample.
But I am humoring you, and went to measure all of my 4 Mec-gar magazines. All 16rd (I don't see why there would be dimensions differences between 17rd and others), anyway, they all ended up measuring the same, 0.800 and 1.252.
I even loaded them and measured them again, and the width at the cut out for the magazine release increased by 0.005 from all original dimensions. So there is some metal deformation in that area, but it is side to side only, not front to back.
Humoring me? I don't need you to measure. The 16rd magazines are fine, no need to measure them. The 17rd mags are indeed different, I assure you.
*Edited because my tone was rude. Sorry.
Sent from my XT1254 using Tapatalk
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The MecGar 18rnd mags are actually 17 or 19 depending on the base plate. Easy to tell because they have a different finish. Those are actually a little fatter than the OEM mags and cause this issue frequently depending on the particular gun. I would suggest this part, I put it in all of my 75's. Makes hammer spring changes easier too.
https://cajungunworks.com/product/24-mag-guide-full-size-hvy-duty-competition/
What is the purpose and/or gain for upgrading to this part?
The purpose of this part is to prevent this from happening:
https://r.tapatalk.com/shareLink?url=https%3A%2F%2Fczfirearms%2Eus%2Findex%2Ephp%3Ftopic%3D67390%2E0&share_tid=67390&share_fid=23595&share_type=t
I have them in all my guns now.
Cheers,
Toby
Sent from my SM-G950U using Tapatalk
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The MecGar 18rnd mags are actually 17 or 19 depending on the base plate. Easy to tell because they have a different finish. Those are actually a little fatter than the OEM mags and cause this issue frequently depending on the particular gun. I would suggest this part, I put it in all of my 75's. Makes hammer spring changes easier too.
https://cajungunworks.com/product/24-mag-guide-full-size-hvy-duty-competition/
What is the purpose and/or gain for upgrading to this part?
The purpose of this part is to prevent this from happening:
https://r.tapatalk.com/shareLink?url=https%3A%2F%2Fczfirearms%2Eus%2Findex%2Ephp%3Ftopic%3D67390%2E0&share_tid=67390&share_fid=23595&share_type=t
I have them in all my guns now.
Cheers,
Toby
Sent from my SM-G950U using Tapatalk
Thank You Sir!!!!!
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I performed some quick measurements on 3 different magazines.
1 OEM, 1 Canik and 1 Mec-gar. They all measured the same ---
Side to side : 0.800 (+/- 0.002) Front to back : 1.252 (+/- 0.002)
Finishes are different, so that could be the issue.
If it remains a problem, an option is to simply remove the "Magazine Guide" all together.
It won't affect the insertion or ejection of your magazines, and won't bring unwanted dirt onto the Main spring (urban myth).
The original use of a "Magazine Guide" was to stop the magazine ejection during an inadvertent press of the magazine release, and gives the shooter the possibility to reinsert the magazine, specifically for law enforcement and military.
Did you measure a MecGar 17rd mag? Even if you did, your sample size is too small. The issues with these are well documented.
I must apologize to you for not having 20 magazines of each on hand for a more detail dimension sample.
But I am humoring you, and went to measure all of my 4 Mec-gar magazines. All 16rd (I don't see why there would be dimensions differences between 17rd and others), anyway, they all ended up measuring the same, 0.800 and 1.252.
I even loaded them and measured them again, and the width at the cut out for the magazine release increased by 0.005 from all original dimensions. So there is some metal deformation in that area, but it is side to side only, not front to back.
Humoring me? I don't need you to measure. The 16rd magazines are fine, no need to measure them. The 17rd mags are indeed different, I assure you.
*Edited because my tone was rude. Sorry.
Sent from my XT1254 using Tapatalk
We are good Earl. I certainly enjoy learning from your experience.
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When you checked the mag dimensions were the mags loaded or empty, makes a difference.
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The larger capacity Mecgars can be "different."
I bought several for my CZ 85 (Pre B) and my son's CZ75SAO.
I'd used 16 round magazines to test my fitting work to allow me to use modern magazines in my Pre B pistol's frame. No time at all I had them sliding in and dropping out.
So, I went three better (19 round Mecgars). I kept 8, have my youngest so the rest. Loaded them up, set some aside for the CZ75 Compacts and four for the Pre B CZ85. One day I ran into a 19 round magazine that wouldn't fully insert into the Pre B pistol. Then I had to check all of them. Of the eight 19 round magazines, only four would insert smoothly. I emptied the ammo from them and talked to my youngest son. He tried the in his CZ75 SAO and all four worked great. I tried the first batch I'd bought for him and ran across four that would insert smoothly/completely into the Pre B CZ85. All of them are Mecgar 19 round magazines. Some worked in the Pre B (with the frame/mag. well filed to open it up for modern magazines) and some didn't.
I also removed the magazine brake from the Pre B CZ85 way back there. It was sort of bent/twisted and binding even with the 16 round mgazines, so I removed it and never looked back. Now I can see, and lube, the hammer spring and strut any time I have the magazine out.
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My issue was the mag release button was traveling too far into the mag well under match conditions. During dry fire practice or simple range time I was pushing but no so far that it was touching the mags on the thumb side. During a match the adrenaline and pressure of the competition had me pushing hard to ensure a clean reload, but I pushed so hard that the inside of the release itself was contacting the mag and holding it in place.
The video that was posted above was the solution i used. Works great now. The button now rattles a bit when no mag is in it. Its fine with a mag. Super clean reloads now.
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Adjust the mag brake. Bend it so it doesn?t make that much of a bow flatten it out. That?s the issue.
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Thanks for all the discussion - plenty to learn when you get a new brand of gun !
I'll post a follow up when I get everything sorted. Sounds like I may finally get some range time tonight; looking forward to dialing this one in.