Author Topic: CZ Kadet Red Dot Installation Parts A & B  (Read 3597 times)

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Offline wagwan

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CZ Kadet Red Dot Installation Parts A & B
« on: December 15, 2023, 09:34:09 PM »
Part A:

I have a Holosun 407K mounted on my CZ 75BD and wanted to mount a Holosun 507C on my Kadet 2.  My old eyes demand a dot these days. After searching the internet and not finding much, I decided to craft my own mount.  I wanted it to be as minimally invasive as possible while still keeping the excellent iron sights.

(Note: Pics are posted on RimfireCentral - I don't have an image host).

The top slide on the Kadet is too thin to mill so I decided to drill and tap for two screws (enough for a .22).  I started with a Weaver 62 base shortened to 2.1 in.  I then milled a shallow 3/8 in. groove in the bottom to tightly and squarely fit the Kadet’s sight rail.  This ensures good alignment. With the base properly positioned, I marked, drilled and tapped for two 6-48 screws.  Depth control on the drill is critically important to avoid going too deep.  I used both a regular and plug tap for the threading. An extra cross channel was cut in the Weaver base for best positioning of the sight.  The Holosun was then mounted with its picatinny adapter.  (I used a small lathe and drill press for this work but I’m sure it could be accomplished with hand tools as well).

The resulting setup was very stable and accurate and I’m sure would work well for many people.

However, I disliked how high the sight was above the slide, especially compared to the 9mm slide.  I like my dots and scopes as low as possible and thought I could do better.

Part B:

I figured that if I attached a mount plate directly to the slide it would reduce the height considerably.

For $10 I purchased a Glock universal mount plate that comes with adapter pins and screws for many optics including the Holosun 507C.  I filed and milled the hump off the bottom until it was flat (should’ve got the aluminum plate instead of steel – easier to work!).  Again, I milled a 3/8 in groove to fit the sight rail.  I used the original weaver mount as a template to mark and drill the mounting holes in the new plate.  These holes were countersunk and the screw heads filed until they were flush across the top so that the optic would sit flat.  The two front positioning pins also had to be shortened.

The optic now sits much lower on the slide. I am satisfied with the result although I will probably go back and clean things up a bit.  Maybe blue it properly, too.

Hopefully, this post will help others accomplish the same.
« Last Edit: December 18, 2023, 04:48:37 PM by wagwan »

Offline southpaw.parallaxscurioa...

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Re: CZ Kadet Red Dot Installation Parts A & B
« Reply #1 on: January 06, 2024, 11:20:32 PM »
i agree, you want low dot height!

This was my solution
https://www.dot40.net/product/eemann-tech-aluminum-red-dot-mount-for-cz-shadow-cz-shadow-2/

pro: very thin plate.
con: makes it harder to rack.

Offline redlightrich

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Re: CZ Kadet Red Dot Installation Parts A & B
« Reply #2 on: June 17, 2024, 08:44:43 PM »
EGW makes a dot sight mount, however it requires you remove the rear sight and use it's dovetail to install it. Easy peasy. No milling or need to file. I have one. It works.

Thank you

Rich

Offline Joe L

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Re: CZ Kadet Red Dot Installation Parts A & B
« Reply #3 on: June 18, 2024, 06:11:18 AM »
Here's my Kadet with an Ultradot mounted 8 years ago using a plate screwed to the top of the slide frame.  This is my bullseye match gun.  If I remove the Ultradot, the irons are still usable.   I have reflex red dots on all the centerfires but the tube type is better optically, just too large and clunky for a slide mount. 

https://photos.smugmug.com/Firearms/Pistol-Range-5-22-16-P-07/i-5DdRB5j/0/DMVDrS3N2psZgJjbH3zS93ZSLCQHnQBj2wLQ25Kgn/XL/IMG_0614-XL.jpg

This was a crude installation in the garage, but it has held up well.  I removed the barrel before drilling and tapping the holes for the rail.  The rail is much longer than needed, but very rigid. 

Joe L
CZ-75B 9mm and Kadet, 97B"E", two P-09's, P-07, P-10C, P-10F, P-10S, MTR