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




(14 customer reviews)

In stock (can be backordered)

Frequently Bought Together

GLOCK 43X / 48 MOS to Holosun 407k / 507k Adapter Plate + +
Price for all three: $139.85

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.


Thickness:  V4 MIL / LEO Plates are .095″ to .099″ thick

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 2 – M4 Mounting Plate Screws

Qty 1 – VC3 Thread Locker

Additional information





14 reviews for GLOCK 43X / 48 MOS V4 MIL/LEO to Holosun 407k / 507k

  1. 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

  2. M24 (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.

  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. 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!

  5. 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.

  6. blhoward77 (verified owner)

    Excellent product.. easy to install. Used with my 43x MOS and the fit is perfect. Dont waste time getting the posts milled down just buy this plate!!!

    Thanks C&H!!

  7. Jonathan Marshall (verified owner)

    Mounts great, and a great option for your 43x with the holosun 407k. You can barely tell there is a plate under the optic. Great craftsmanship.

  8. edinaio2 (verified owner)

    Lo mejor y ahora más que los envían a PR…gracias!!

  9. Sean Migneco (verified owner)

    Excellent mounting plates. I purchased two of them to mount Holosun 507k’s on both a 43X and a 48 and they both fit perfectly allowing for a perfect low witness with Trijicon HD XR sights. Yes, the plates are pricey, but they are worth it IMO. Will purchase from CHPWS again.

  10. Craig Mcdonald (verified owner)

    Simple to install….even came with thread locker.. installed this on a Glock 43x mos with a holosun 507kx2.
    Worked great

  11. William Weidman (verified owner)

    I used the Holoson 407k to glock 48 mos and it was a perfect fit. Followed the video and the installation was quick and easy. Very high quality product for a precision fit.

  12. peteandersonccdw (verified owner)

    I ordered 2 of these plates for mounting a 507k to a 43x mos and a 48 mos. Perfect fit. I opted to use stock screws that I had already filed down as I didn’t care for the look of the screws that came with the plate. I will definitely buy again.

  13. Brandon Miller (verified owner)

    Shipping was fast. Product was just as described and worked as advertised. I am very happy..

  14. Ttran132 (verified owner)

    CHPWS makes some super quality stuff. Shipping was extremely fast. Their tolerances on everything is perfect. I bought this plate for my 48 and it snapped right in. The fit was perfect. There was no wiggle or play once it was seated. I’ve ordered a few replacement screws from here too and they are fantastic as well.

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