CZ-75 Red Dot and Co-Witness for under $325

[pcar157]

Boss,
Looks like a nice clean mount that fits the CZ-75 slide perfectly! Who did the milling and mount?

Primary Machine. It looks flawless.
John

boss, what mounting plate did you use for the Holosun and where did you purchase it?
thanks

PCAR, I used the Primary Machine mount option, which works for both Holosun 507/508 and Trij RMR.  For my full size SP-01 Tactical mill work, this link was the proper selection on Primary Machine's site. I think for the 75 compacts there is a separate link that doesn't offer an adapter as an option. http://primarymachine.com/cz-75-85-1911-2011-mill-for-rmr/

Thanks boss! Much appreciated

[J10mm]

Any one have experience with the durability of the Vortex Venom? Seems like the cost equivalent to the JPoint with a better warranty.

[Vinny]

Yes, Excellent Optic especially considering they're nearing only $200 now. I've had 3 of them several years.
Way better that the J-points I bought 4-5 years ago. A lot has changed since this post started in 2017. 
P-01 by CZ Custom, P-07 by Primary, FNX-45 Tactical came optic-ready.

[mig1nc]

Yes, Excellent Optic especially considering they're nearing only $200 now. I've had 3 of them several years.
Way better that the J-points I bought 4-5 years ago. A lot has changed since this post started in 2017. 
P-01 by CZ Custom, P-07 by Primary, FNX-45 Tactical came optic-ready.

Without the plate on your P-01, would that Vortex sit low enough to cowitness stock sights?

[Vinny]

Quote from mig1nc:
"Without the plate on your P-01, would that Vortex sit low enough to cowitness stock sights?"

The answer I believe is NO.  But you could confirm what currently available optics might from the knowledgeable shops that mill like Primary Machine, CGW, CZC, etc.

My other P-01 was milled by Primary two years ago to fit a Shield RMS. Small enough to fit between the stock sights for co-witness, but IMHO it's a cheaply made and expensive optic and I wouldn't recommend it. There are a number of new micro optics coming out and I'm especially hopeful that the Holosun 407K/507K will be small enough to fit between the stock sights and lower 1/3 co-witness like this:

[CZ4 today]

Vinny: Did the Jpoint just happen to fit on the Leupold mount--or did you have to do some additional modification? Any thoughts on a similar non-milled low mount setup using a Vortex Venom?

[Vinny]

Vinny: Did the Jpoint just happen to fit on the Leupold mount--or did you have to do some additional modification? Any thoughts on a similar non-milled low mount setup using a Vortex Venom?

The footprint and locking bosses of Leupold Delta Point Pro also fit the JPoint and Shield. So yes, the various adapter plates offered by Leupold to fit a number of firearms (like my S&W N Frame revolver) for the DPPro will also adapt the JPoint. However, the Venom is a different footprint (although IMO it's a better red dot than the JPoint/Shield). There are quite a few dovetail mounts like Springer Precision's available for the Venom or other red dots, but they will of course make the optic sit higher than a milled-in slide.
Hope that answered your question(s).

[Kayin]

Do you think this option would work well for a SP-01 Phantom or a Tristar T-120?

[Vinny]

Do you think this option would work well for a SP-01 Phantom or a Tristar T-120?

I really don't know IF the rear dovetail and shape of the slide is the same as the CZ-75??
You could check with CZC and/or Leupold.

[melsauto]

Looks great. No issues with the tape bunching up when you pushed the sight base in?

With this work on my just purchased Sp 01.
Thanks

[mig1nc]

I just ordered the mount. Going to try add pick up a Holosun HS507K and trim the mount to fit.


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[mig1nc]

Mount came in from optics planet. A new shipping record for them!







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[mig1nc]

All done. Now I need the Dawson's front sight to finish up. One thing to note, the 507K requires removing the rear lugs and sanding down the front ones a little bit.

I then had to shim up the back of the mount because the holosun wouldn't adjust down far enough.





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[songalong]

All done. Now I need the Dawson's front sight to finish up. One thing to note, the 507K requires removing the rear lugs and sanding down the front ones a little bit.

I then had to shim up the back of the mount because the holosun wouldn't adjust down far enough.





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I'm having issues with this particular set up on my SP01 and Holosun 407k.

1) How does the dovetail fit into the dovetail sight cutout on the Sp01 slide? My leupold provided dovetail slides in but without any traction, it literally just slips into it but has a good amount of play/wobble in all directions, left/right/up/down. This makes me wonder what the attachment mechanism is meant to do, how is the 407k meant to sit nightlight against the slide?

2) Which screws were used to mount the red dot? The holosun 407k screws or the leupold ones?

3) When you say shim, what/where did you shim the mount? What did you use to shim?

Thanks for answering all my questions, I just bought the my long awaited SP01 and can't fathom milling it anytime soon =(

[mig1nc]

So, an update on this project.

The holosun 507K does not have enough vertical adjustment to use the mount as it is. I was only able to zero using the bottom hashmark on the circle reticle.

I'm about ready to give up on the project and just have it milled by my gunsmith. The only other option I can see is getting this angled adapter plate that gives more adjustment: https://www.ebay.com/itm/323928166601?hash=item4b6b9f90c9:g:QtIAAOSwUG1di9Tu