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Glock Slide Milling for Holosun 509T/509ACSS

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Lead time is one (1) week after slide is received for orders require shipping, walk-in orders available in 30-minute while you wait.


Factory OEM slide only.


Milling service for mounting Holosun 509T / 509ACSS sight to the slide.


Upon ordering, instruction will be provided for you to mail in the slide. Customer is responsible for shipping the slide in.

Price includes return shipping after milling.


Available on double stacked Glock models, except MOS models, G17L, G41, G44.

Not available for single stack models such as G21, G43, G43X, G48.


Design considerations / Why I do differently than others

  • 509T/509ACSS has an asymantrical dovetail design, therefore when done properly, the interface will appear to be shifted to one side by aproxmiately 0.5mm. But this offset is critical to keep the red dot perfectly centered on the slide.
  • Read more here: