Holosun K Footprint (407k/507k/EPS/RMSc) Direct Mount Conversion for Glock 43/43x/48 MOS

(3 customer reviews)


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This is a service to cut your factory MOS Single Stack Glock slide for direct mounting a Holosun 507k/407k pattern optic. The cut involves removing the rear posts on the factory MOS cut and shortening the front posts to allow the 407k/507k to sit flush. You will use the factory mounting holes to mount the optic, but you may have to shorten your screws slightly.

Please note: This is a conversion cut for MOS slides only! If your slide does not have an MOS cut, you will want to select the 407k/507k full footprint cut.

COATINGS: There is also an option to add Cerakote or bluing to the slide. We offer the Cerakote in Graphite Black, FDE, ODG, Tungsten and Burnt Bronze and it will be applied to the entire slide. The cold bluing will be applied to just the area we cut and your factory finish will remain everywhere else. This type of finish is not as consistent and visually appealing as the Cerakote, but offers some protection for the bare metal. If the Cerakote option is chosen, we will remove your channel liner and install a new one after coating. We also now offer a black nitride coating. The nitride is a much harder finish than the Cerakote and will not wear as quickly. It is similar to many factory coatings and offers a clean uniform black look. We work with a local company to offer the nitride, so lead times are not guaranteed. Estimated 3-4 weeks total turnaround.

THE PROCESS: Once you checkout with your chosen optic cut you will receive an email with instructions on how to ship the slide to us. Please ship us your stripped slide only, we are not an FFL and cannot handle frames! We will complete the cut and/or Cerakote and then ship the slide back to you quickly! You will receive an email once the slide has been shipped back to you.

TIMELINE: Once we receive your slide, we will complete the work in 3 business days (Mon-Fri) or less and get it shipped back to you. This includes coating.

PLEASE NOTE: Your order will be returned to the address that you provide at checkout. Please follow instructions and include a copy of your confirmation email when you ship your slide to us, failure to follow this will result in increased turnaround time.


DISCLAIMER: This product is not manufactured, authorized, endorsed,
or warranted by GLOCK. GLOCK does not warrant or represent that
this product is compatible with GLOCK pistols.

Additional information


Glock 43 MOS, Glock 43x MOS, Glock 48 MOS


None, Black Nitride (Increased Lead Time), Blue the Cut Area, Graphite Black Cerakote, FDE Cerakote, OD Green Cerakote, Tungsten Cerakote, Burnt Bronze Cerakote

3 reviews for Holosun K Footprint (407k/507k/EPS/RMSc) Direct Mount Conversion for Glock 43/43x/48 MOS

  1. Yousef

    Beautiful work

  2. Dan

    I had the pleasure of meeting Nate locally to have the conversion completed as well as a couple other slides cut. Solid guy doing quality work and providing customer service and turn around times that are above expectations amongst companies doing optic cuts. Highly recommended for quality work and quick turn around.

  3. Chris

    My slide came out perfect!!! I was a little concerned because of the design on my slide, burnt bronze battle flag, so reached out to ask what finish and nate got back to me within hours ,unheard of, and said pock the blued option. So I sent my slide out Thursday afternoon and got it back the following Saturday all the way to California. I will be recommending wager to all my friends

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