Upgrade for Glock 43X/48 MOS to fit Holosun K series / EPS / EPS Carry
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Upgrade for Glock 43X/48 MOS to fit Holosun K series / EPS / EPS Carry

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***You must use the M4x.07 screws supplied with your Holosun K series / EPS / EPS Carry optic.***

If holster wear/durability is a concern then we highly recommend going with our Black Nitride as Cerakote is a wearable item. 

Cerakote and Black Nitride are for the entire slide. (Black Nitride adds 2-3 weeks lead time) 

For Cerakote color codes and examples: https://jagerwerks.com/cerakote/

It is implied that the customer will have arrangements for coating of a slide if NONE is selected for color. If NONE is chosen there is potentially an issue for rust and corrosion to develop on the slide. Jagerwerks is not responsible for misuse and neglect of bare metal.

We do not charge extra for disassembly/reassembly, if you send your entire slide assembly we will laser align the sights for you.

If you include new sights we will install the new ones at no charge. If you include your Holosun, barrel and recoil spring we will align it for free. 

This service is to mill down the rear and front posts on the 43X/48 MOS model to install the Holosun 407K/507K. 

No plates needed! This is for a direct mill. 

***You must use the M4x.07 screws supplied with your Holosun K series optic / EPS / EPS Carry.***

***The Holosun provided screws must be trimmed to .400" OAL.***

Iron Sights

Dawson Precision Glock Iron Sights for Holosun 407K and 507K


Sold as a pair. (Rear Iron Sight and Front Iron Sight)

Dovetail Behind Optic

Lower 1/3rd Co-Witness

- Blacked Out Rear/Fiber Front - (Rear Iron Sight is .225"/.125" wide, Front Iron Sight is .220"/.125" wide)

If you order these we will install them for free! 


Note* Please be careful when installing screws with the new Holosun EPS, tolerances can be slightly different and the screw caps come close to the glass.  If JagerWerks does not do the installation we cannot guarantee fitment.


1 Review

  • Awesome

    Posted by Justin on Jun 11th 2023

    You know something is done well when there are no signs it was done at all. It’s as though the cut was factory done. The coating is flawless and fit and finish are awesome. If on the fence, take the leap. You won’t regret it—I don’t.

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Shipping & Returns


Please ship to our address 

JagerWerks Eng LLC 

111 D ave East 

Kalamazoo MI, 49009 

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

 Shipping Insurance and Signature Confirmation 


When shipping slides for milling, SHIP SLIDES ONLY. Do NOT ship the lower of the firearm as we are not transferring the firearm. We only custom mill slides.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.