Shadow 2 Harbinger V1 Slide Milling

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  • Shadow 2 Harbinger V1 Slide Milling
  • Shadow 2 Harbinger V1 Slide Milling



Service: CNC mill your supplied slide for optic, removing rear dovetail & weight reduction (Optic MUST be sent with slide - no exceptions.) ONLY select NO optic cut if you want the rest of the package without the optic cut.

Finish: Cerakote® or Black Nitride


** As of 11/01/2021 Two Modifications have been made to the Trijicon RMR®/SRO®(Holosun 507C/508C) milling option. This selection now has a shelf milled in front of the optic pocket to accommodate the hood of the SRO®. We have also changed from our proprietary screws to commonly available 5-40 screws. These two modifications have allowed us to mill the optic pocket as close to the center of bore as possible, without milling into the firing pin channel. **





We do not use the factory supplied screws for the following optics - 


  • Trijicon RMR/ SRO
  • Holosun 507C/ 507Comp


We use standard, readily available 5-40 screws that can be found at your local hardware store.


You can also purchase replacement screws here: 






Due to the nature of Cerakote, the fitment of your slide on your frame may become tight when you receive your slide.


If this is the case, please contact us for free rail fitting.


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Additional Information

CZ Shadow 2
Black Nitride or Cerakote®
Optic Footprints:
Trijicon RMR®/SRO® ( Holosun 507c/508c), Trijicon RMR®cc, Leupold DeltaPoint ®, Holosun 407K/507K, Sig Sauer Romeo3/3MAX
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9 Reviews

  • 5
    Shadow 2 Optic and Slide Mill

    Posted by Joe Phillips on Jun 1st 2024

    The Best of The Best !!! Thanks guys for a great job I am pleased...

  • 5

    Posted by Ron Holt on Aug 7th 2023

    Blow away with the amazing job! The precision and attention to detail is second to none. Was very hesitant to send off my pistol to have this done, but don't regret it a bit. Great job Primary Machine !!!

  • 5
    The only place to go for slide milling

    Posted by Denny Seto on Apr 25th 2023

    This is my second cz slide milled by primary machine. My first one I had just the optics cut for a sro. This one I decided to go with the harbinger v1 so I would safely make idpa weight. They knocked it out of the park again. Turnaround time was faster than listed (same with my first shadow slide). Top notch work and is my go to place for slide milling

  • 5

    Posted by Michael Parrish on Nov 27th 2022

    Great job! Just what I imagined it would be. Thank you!

  • 5
    Harbinger V1

    Posted by Efren Cabreros on Oct 17th 2022

    WOW! The work is incredible. The detail and precision is second to none. It looks so damn sexy.

  • 5
    Quality Of Work Matches Their Customer Servics

    Posted by @PewPewPadawan on Aug 1st 2022

    Had my brand new Shadow 2 slide instantly sent off to PM to get this milled & cut for a Romeo3XL, & then polished & GOLD Titanium Nitrided. PrimaryMachine did their job spectacularly, but the separate coating company dinged it while coating. So PM repolished & sent back for a re-coating, & yet again the coating company made another ding. I repeat, it’s a total separate company who did the coating! After all is said & done, PrimaryMachine 100% made it right & fixed the problem. I can’t say enough great things about how they handled it every step of the way. Their quality of work, & their customer service, are both top of the line. Cody & Cherish at PM are amazing! Infinitely Grateful for the work & help y’all provided. Y’all are the best!

  • 4
    shadow 2 harbinger v1 slide milling

    Posted by tony on Nov 22nd 2021

    the S2 slide came out very nice - quality of work is excellent- i would have given 5 star
    if not for the re- engraving of shadow 2 on the L/H side of the slide its not easily readable laser cut is very light- the one you have on your website looks very nice
    it would have been nice if my slide came out just like what you have on your website

  • 5
    Slide cut

    Posted by on Feb 18th 2021

    Fantastic work the slide looks amazing! The finish is perfect. Love it with the SRO on it !
    And only took 3 weeks from when I sent the slide to them !!!
    Primary machine is the place for slide work !!!

  • 5
    Shadow 2Harbinger V1 slide milling and install SRO red dot.

    Posted by Tom Neveitt on Oct 27th 2020

    Perfect job just what I ordered.Actually better than I expected! Looks beautiful and works great. I highly recommend Primary Machine.

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