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Glock Optic Milling

5 Stars
* If you do not choose return package insurance, Primary Machine will not be held responsible in any way, shape, or form for packages lost in the mail through USPS or UPS. :

Product Description

- CNC mill your Glock slide for your optic


- Single Color Cerakote included in price


We mill precision pockets for your optic! While many companies will mill an over sized "one size fits all" pocket, ours is precision as per your optic. The cycling of a pistol slide is not gentle. The last thing you want is all that force to simply be on the mounting screws due to an optic pocket milled too big! Screws have been known the shear and break over time due to improperly milled slides.


What to do after you order:

- Print order confirmation email

- Send copy of confirmation email with slide (does not need to be disassembled) and optic to:

Primary Machine

2951 Railroad Ave

Morgan City, LA 70380


Current turn around time is 2-3 weeks.


- We WILL NOT mill deeper than firing pin block allows! 

If you choose to mill IN FRONT of rear dovetail with the following optics, the firing pin block will be a limiting factor on depth, which is .050" deep: DP Pro, FF III, Venom

With that said, those optics WILL NOT co witness unless you choose the option to mill the rear dovetail out and mill new dovetail in front of optic. This allows us to mill the optic deeper and co witness with Ameriglo suppressor height sights. DP Pro will only co witness with plain black front and rear suppressor sights. 





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Product Reviews

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Showing reviews 1-10 of 27 | Next

  1. New Life For An Old Pistol And Old Eyes 5 Star Review

    Posted by on Jun 16th 2017

    I have a Glock 21 Gen 3 which I was bored with and I had considered trading it away or selling it. I decided to use it as a test mule for one of those newfangled pistol optics everyone seems to like. I poked around on the AR forums and found that Primary Machine has a great reputation and I decided to have them mill the slide for a Leupold DeltaPoint Pro. This proved to be an all-around good decision.

    Reasonable pricing, fantastic workmanship (looks factory), quick turnaround, and great customer service. Bruce answered some of my e-mails within 5 minutes, and delivery was just a hair over 3 weeks from the day I shipped the slide. And my 55 year old farsighted eyes REALLY like the reticle which appears in the same focal plane as the target.

    Realistically, how many times will the average gun owner swap multi-hundred dollar optics? Do your homework, decide which sight you want, and have the slide milled for it. This is a much better option than the OEM systems with adapter plates, in my opinion, especially for the Delta Point Pro. I can't wait to get back to the range and take some tactical classes with my "old" pistol!

  2. Better Than I expected 5 Star Review

    Posted by on Jun 7th 2017

    Looking at pictures of the work that primary machine does, does not give them justice. I ordered stainless and it came out perfect, just what I wanted. Turn around time was good also, about three weeks.

  3. Awsome Job on My Glock 34 5 Star Review

    Posted by on Jun 4th 2017

    The milling for the rear of the slide to accept the red dot optic looked like factory original. I had the slide coated and the finish was perfect. I recommend sending in the complete slide and red dot for a proper fitting. this was a perfect job...!

  4. Old Eyes and a New Sight 5 Star Review

    Posted by on Jun 3rd 2017

    In competition, an Eotech sight brings my scores up immensely!

    Primary Machine mounted one on my Glock 29, added suppressor sights and Cerakoted it in Stainless.

    Looks great
    Shoots great
    Carries great

    Postal pickup to postal delivery was about a month.

  5. Fine Craftsmanship! 5 Star Review

    Posted by on Jun 3rd 2017

    Great service and the quality of the fit and finish are superb.
    Sent in my G23 to have it machined for a Leupold Delta Point Pro and have it refinished. Unfortuntely the supressor height sight I had provided weren't tall enough to clear the sight, but PM were quick to point me to a set that would work from Dawson. All in all a great job by Primary Machine and would definitely recommend them to anyone looking to get their slide machined.

  6. Unbelievable Work 5 Star Review

    Posted by on Jun 3rd 2017

    Primary Machine did an incredible job milling my Glock 17 for my Vortex Venom. It now sits much lower on the slide and when I bring my gun up, I no longer have to search for the dot - it is right there on target. They also installed Dawson suppressor night sights that perfectly co-witness the dot.

    They cerakoted the entire slide and the coating is flawless.

    On top of that, I needed to contact them on a few occasions and always received a prompt, courteous response.

    I highly recommend Primary Machine to anyone looking to have similar work done on their pistols. I'll be back for future work.

  7. Glock 22 milled for Pro point 5 Star Review

    Posted by on May 24th 2017

    excellent work , prompt service, got my G22 slide milled and Cerakoted , had suppressor sites installed, all in 2 weeks including shipping time, great job! Only had one minor issue, as my G22 was an early 3rd gen,the plastic recoil spring guide rod had no play to start with, so with the Cerakote it was rather difficult to get it back in the slide for reassembly,But one turn with a piece of extra fine grit sandpaper on the plastic ,and it went right together. Burnt bronze looks great. milling looks great. thanks for the great work.

  8. CZ P07 Milling for Vortex Viper w/ buis 5 Star Review

    Posted by on May 19th 2017

    Excellent quality work! No machine marks and the Cerekot finish was perfect. I got the rear iron sight mounted in front of the Vortex Viper and it looks like it came from the factory that way. Got the slide back in 3 weeks which was pretty good and it would have gotten back faster if they did not have to wait on the front Dawson Precision sight to come in (I'm sure Glocks and M&P's would not have that issue since they are more popular). Excellent communication and they quickly answered all of my questions. Only issue was that the optic would not turn on when I got it. I took the optic off and covered the side of the battery that faces the slide with electrical tape and the problem was solved. When my wife is ready for a red dot on her VP9 I will be sending the work to Primary Machine!

  9. Perfect fit. 5 Star Review

    Posted by on May 12th 2017

    Sent three slides in for RMR milling and cerakote; two Glocks and one M&P, the fit and finish is excellent. RMRs fit very tight and co witness with no issues. The Cerakoting was executed better than I could have hoped for. The Dawson sights are impressive. I enthusiastically recommend Primary Machine for your needs.

  10. Good work and reasonable turn around 5 Star Review

    Posted by on May 11th 2017

    Very pleased with quality of work. Sent my Glock 19 Gen 3 to be milled for Trijicon RMR. Cerekote looks great. This is my first optic milling and could not be happier with outcome. I will be recommending Primary Machine.

Showing reviews 1-10 of 27 | Next

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