Optic Milling For Glock Pistols

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  • Optic Milling For Glock Pistols
  • Optic Milling For Glock Pistols
  • Optic Milling For Glock Pistols


Model: All Generation & Model Glock (43, 43X, 48 Is milled for 407K/507K, or RMRcc, only.)

Service: CNC Mill Slide For Optic (Optic MUST Be Sent With Slide - No Exceptions)

Finish: Cerakote Or Black Nitride

Other: 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.

Configurations For Co Witness Sights Using Suppressor Height Sights:

Trijicon RMR & Holosun 507/508: Optic can be milled in front of rear dovetail or have rear dovetail milled out and mill new Glock dovetail in front of optic.

Deltapoint Pro: For lower 1/3 co witness, you MUST mill out the rear dovetail and mill new dovetail in front of optic. You MUST use plain black suppressor height sights.

If you are not worried about iron sights, any configuration is fine. 



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213 Reviews

  • 5

    Posted by Matthew Pokrywka on May 14th 2023

    I am a FFL this was the first slide I sent to them flawless work Nitride coating also flawless my customer was excited and impressed with me and recommending PM for the work all my slide will e sent there your should be as well without a dout Thank you PM

  • 5
    Optic mill

    Posted by Suiye on Apr 30th 2023

    Packaging was great, Slide looks
    great also. would recommend 10/10.

  • 5
    Slide milling

    Posted by Dan on Apr 10th 2023

    Top notch work, fast turnaround. Really could not be any happier with my order, will definitely use Primary Machine for future slide cuts.

  • 5
    Slide milled.

    Posted by Eddie Barthel on Feb 14th 2023

    Great job. Looks like it was done at the Glock Factory.

  • 5
    Optic milling Glock 43X

    Posted by Sam on Jan 24th 2023

    This is my second slide I’ve had cut by Primary Machine and both have turned out amazing

  • 5
    Glock slide milled

    Posted by Tobin Shadwick on Jan 18th 2023

    Absolutely impressive. I am always skeptical on most aftermarket work, but you guys nailed it. Fit✔️finish ✔️

  • 5
    Slide Milling

    Posted by MasterBlaster on Jan 5th 2023

    Ordered slide cut for my Holosun with Sniper Green Cerakote. Was expecting a gloss finish, but it is a flat finish. No problem as it looks great. Second surprise was that unlike my Glock 19 MOS which uses a transfer plate, the Primarymachine job has the sight sitting lower which is an added bonus! I can see my original iron sights, no need for new elevated sights. Also, seems to be far superior to the MOS as there isnt any slop, its a perfect fit. And lastly, the did the job over the holidays with no delay with a fast turn around So 4x Five Stars!

  • 5
    Glock 17/ Holosun 507C X2

    Posted by Frank Iacono on Dec 22nd 2022

    Followed the mailing instructions and shipped my G 17 slide. I chose to strip the slide myself. I was periodically notified by Primary Machine as to the progress of the order. The slide was returned in about 3 weeks. Upon opening I noticed the machining was flawless. The slide came with the reflex sight attached. I reassembled the pistol without any problems and went to the range to sight it in. Holosun sights are factory pre zeroed, so if all machining is square, theoretically, little sight adjustment is necessary. At 10 yards the first 5 shots were to poa. At 25 yards group was 2” high (works for me) and at 50 yards again shot to the point of aim. The only sight adjustment was minor, 1moa up and 1moa right. So the sight is accurately placed on the slide, the machining, slide finish restoration and attention to detail are outstanding,
    and pricing is reasonable. I was thinking to just get an aftermarket slide already milled for optics but for me, choosing Primary Machine worked out very well. I would unhesitatingly recommend their shop for those needing machine shop work on their pistols.

  • 5
    Excellent Work

    Posted by Levi on Dec 14th 2022

    Had Mike do an RMR/407/507 cut on my Glock 41 with the intention to run a 509T with adapter plate. Cut came out great, 509T works exactly as intended, overall very happy with the work, process, and return time. Thanks!

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