(54 reviews) Write a Review
  • UCC V1
  • UCC V1
  • UCC V1
  • UCC V1
  • UCC V1



- All OEM Slide Writing Removed 

- Top, Front & Rear 45 Degree Chamfers

- Top Weight Reduction Pockets

- Side Weight Reduction Pockets

- Add Front Cocking Serrations


Available For: All Models, All Generations


Finishes: Cerakote Or Black Nitride

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54 Reviews

  • 5
    UCCV1 Irons forward RMR cut

    Posted by Colton on Oct 14th 2020

    Just got back from the range and I really dig everything about this milling work, Its fantastic.
    Only things Worth mentioning other than that is if you don't know one of the 2 mounting screws is shorter than the other and this is intentional, Looks like the ejection side hole is drilled down to the extractor depression plunger. The shorter screw is meant for this side.

    Love the slide

  • 5
    Milled Slide

    Posted by Michael R Durland on Oct 5th 2020

    I received my slide milled for the RMR with the black nitride finish a week earlier than expected. Fit and finish is excellent. I had very high expectations based upon my research and those expectations were easily met.

  • 5
    Slide milling

    Posted by Matthew Bell on Sep 8th 2020

    3rd slide I’ve sent to primary machine! Work is always flawless and better than advertised! Great company!! They will continue to get my business!!!

  • 5
    Slide red dot cat

    Posted by michael brooks on Aug 23rd 2020

    It’s beautiful I’m very pleased with the quality you guys have won me over I’ll ship all my slides to you

  • 5
    Two gen3 g19 uccv1 slides

    Posted by Richard Moskos on Aug 18th 2020

    I had 2 gen3 g19 slides done in the uccV1 option with optic cut and different Camo pattern cerakote. I also had suppressor height sights installed. All of it was done to perfection. The lead time was as advertised. I loved them so much that they have 2 of my g26 slides right now

  • 5
    UCC V1 Slide Work

    Posted by Kevin on Jun 29th 2020

    I couldn't be happier with the quality of the work performed by Primary Machine. My slide was returned in a third of the time quoted and it looks outstanding.

  • 5
    Glock 19 and Glock 26 slides

    Posted by Lance Hodge on Jun 2nd 2020

    You guys do awesome work. I’ve had custom work done before but none as good as yours. That’s why I keep coming back!

  • 5
    UCCV1 Review

    Posted by David Gonzalez on Nov 10th 2019

    Everything went smooth from ordering to receiving my finished slide. The lead time was as advertised. The work speaks for itself, it is just phenomenal. I opted for the black nitride finish and it is very nice. The 50/50 payment was also a nice and convenient. Would definitely recommend and will continue to use this company.

  • 4
    Good job

    Posted by Romeo Santiago on Jul 7th 2019

    Slide looks real good. Finish is great

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