V4 MIL/LEO Adapter Holosun 407k / 507k Fits GLOCK 43X / 48 MOS




(55 customer reviews)

In stock

Frequently Bought Together

Do-It-Right Bundle: Check all three of these products and hit "add to cart" for a 15% discount!

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Price for all three: Original price was: $157.35.Current price is: $133.75.

The C&H Precision plates are designed, manufactured and shipped from our small family owned business in Coastal Georgia.  Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to our customers.


Material: Plates are made from 6061 aluminum.  All mounting hardware is Stainless Steel

Finish:  Plates are MIL-SPEC Type III Hard Anodized – Black


Qty 1 – Optic Plate

Qty 3 – M4 x 10.5 MM M3H Plate Mounting Screws

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.

At C&H Precision, our products are designed and manufactured to meet tight tolerances. Installation can be affected by variations in your plate, hardware, optic, and firearm tolerances. For safe installation and to prevent potential damage to any component, we advise dry-fitting all parts before a full installation. If any problems arise during this process, please reach out to our Customer Service via our contact portal.
When making aftermarket firearm modifications, factory components can often become obsolete, particularly when mounting optics on the slide, whether through direct milling or using a plate. Achieving the correct height for low co-witness iron sights depends on factors such as the firearm type, mounting plate, optic, and slide cut. For assistance in determining the appropriate iron sight height for your specific setup, please contact our Customer Service team through our dedicated contact portal.

Additional information





55 reviews for V4 MIL/LEO Adapter Holosun 407k / 507k Fits GLOCK 43X / 48 MOS

  1. Brian Habovick (verified owner)

    Fit and finish were excellent, I originally bought a RMRcc for my 43X MOS and the mounting plate from CH was to thick and I bought taller sights to co-witness it and it still didn’t co-witness. The plate for the HOLOSUN was nice and thin and with the sights I bought to co-witness with the RMRcc they matched up perfect with the HOLOSUN. Very happy with this setup.

  2. Matthew Weiss (verified owner)

    Impeccable machining! So nice! Literally SNAPPED in place, fitting nice and tight. The screws that came with it were also the perfect length! Something a lot of people don’t know about the 43 and 48 mos is that the screws provided by most red dots will be TOO LONG, and WILL hit the extractor, and WILL cause the pistol to not fire correctly – this happened to me personally, and I had to file down the screws provided by holosun AND sig sights. But with the provided screws, it was smooth sailing. Thanks so much CHPWS i will be purchasing more items!

  3. archerbell (verified owner)

    Perfect fit for my 43X MOS, not only the adapter plate, but the mounting screws are the perfect length. I originally tried the screws that came with the sight and they were too long. This interferes with your extraction and your pistol will be unreliable. It would look better if the screws were black instead of silver but I guess that would be nit picking.
    After correcting the mounting screws I proceeded to adjust the sight. This was a new pistol and I was using the Shield Arms S15 magazines. I ran 50 rounds of ammunition through the pistol to make sure everything worked together. It did and I feel that the pistol is reliable enough to carry.
    My original order was improperly filled and I got a plate for a full size Glock. A phone call to customer service set in motion an exchange process that resulted in the proper mounting plate arriving four days later. I had to make an unplanned trip to the UPS Store. Fortunately there is a UPS Store about ten miles away. I was able to print out a return authorization label that was prepaid, so I was just out of time and expense of getting the return dropped off.
    I am seriously considering having my H&K VP9 milled by CHPWS. I have confidence that the work will be satisfactory if not outstanding.

  4. Anonymous (verified owner)

    Very nice product. It arrived in good order, nicely packaged, etc. Installation was a breeze. I did use my own blue loctite as I prefer it over vibra tite. I have not shot the pistol with the optic installed yet, but will be out on the range to zero the optic soon. I will check my witness marks, which I was glad to see were part of the instructions -a good practice everyone should know about, it saves heartburn later from serious unexpected failures. The ONLY reason I did not give the product 5 stars, which in terms of quality, it certainly deserves, is because it was $60.00 shipped. I did opt for the extra bits, just for the heck of it, but even with that, the asking price is steep given that the optic was $280.00. I think that the price is high by $25 or so, but with that said, I would pop for another if I needed one.

  5. eliasrahal (verified owner)

    Great plate clean cut ,have in front small pin need it for glock 43x mos or48x mos to install holosun 507 kx2 come with 2,sliver screws wish they was black ,don’t use holosun screws to long will touch ur plunger extractor causing malfunction to eject. Use Chpws sliver one I forget I reviewed In 2 days super fast

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