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Q&A for Holosun 407/507K Sight Mount MOS Adapter — 25 Questions & 15 Answers

Name Holosun 407/507K Sight Mount MOS Adapter (4)
$47.05 $39.99 Save 15%
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Q
Gordy, guest, from CO, United States, asked on June 23, 2022

I have a 43X Glock. I want to get a 507K red dot. Do I need to get my 43X milled or will this adaptor preclude that.

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on July 08, 2022

This plate is designed for MOS model Glocks to fit the 407K/507K, and will not work with your 43X. You can get your 43X slide milled to fit the 507K. Or you can use a Deltapoint Pro adapter plate (which will have to be slightly modified, and overhang on each side of your slide). If you do not want to mill your slide, use the Evolution Gun Works Leupold DeltaPoint Pro Sight Mount (linked below), however as stated earlier, you will need to modify the plate by removing the rear two lugs and shorting the front two lugs. If you need further assistance you can email us at Techsales@opticsplanet.com.
https://www.opticsplanet.com/evolution-gun-works-leupold-deltapoint-pro-sight-mount-for-glocks.html

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Q
Shaun, member, from MD, United States, asked on July 10, 2024

Is this mount for the EPS models

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on July 10, 2024

Yes, the Holosun 407/507K Sight Mount MOS Adapter will also be compatible with Holosun EPS and EPS Carry model optics.

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Q
Ricardo Lim, member, from NJ, United States, asked on January 26, 2023

bought 507k for my Glock 43X MOS slide, the screws that came with the 507k are too short or too long, it gets into plunger assembly. this adapter work

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on September 26, 2023

This Holosun 407/507K Sight Mount MOS Adapter will not work with the Glock 43X MOS. You will need the adapter at the link below.
https://www.opticsplanet.com/c-h-precision-weapons-v4-mil-leo-adapter-plate.html?_iv_parent-gun-make=glock&_iv_gun-model=glock-43x&_iv_code=5HT-RMT-CHPV4ML-GLX-HOLOK&_iv_optic-cut=holosun

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Q
Ed James, member, from MI, United States, asked on December 20, 2022

Will this plate allow an individual to mount a Holosun 407 to an optic ready Walther PDP 4 in barrel?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on January 05, 2023

No. This plate is specifically designed for MOS model Glocks to allow them to fit optics that use the Holosun K footprint. To fit a Holosun 407C on your Walther PDP, you will need to purchase a Trijicon RMR adapter plate from Walther directly, which can be found by using the link below. If you are looking to install a 407K, you need to purchase and install the C&H Precision Weapons Walther Defense PDP 2.0 Adapter Plate, which can be found by using the second link below:
https://waltherarms.com/pdp-optic-plate-trijicon-rmr-sro-and-holosun
https://www.opticsplanet.com/c-h-precision-weapons-walther-defense-pdp-2-0-adapter-plate.html

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Q
Rich, member, from MI, United States, asked on December 13, 2022

Will the 407/507K Sight Mount MOS Adapter work with my Glock 34 Gen 5 MOS? Your customer service rep says yes.

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on December 19, 2022

Yes, this Holosun 407/507K Sight Mount MOS Adapter is designed to fit double stack MOS Glock pistols. It will mount to the MOS cut slide on your Glock 34 and allow you to install a Holosun optic that uses the Holosun K footprint.

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Q
Douglas, member, from WA, United States, asked on November 19, 2022

Who manufactures the mounting adapter?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on February 23, 2023

The Holosun 407/507K Sight Mount MOS Adapter is manufactured by Holosun Technologies.

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Q
Buck, guest, from PA, United States, asked on November 11, 2022

Need adapter plate Walther WMP for Holosun HS 407K

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on November 11, 2022

Unfortunately, we do not currently carry an adapter plate that converts your optic cut to the Holosun "K" footprint. I would recommend reaching out to a company called CHPWS to possibly have one made.

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Q
Miguel Rodriguez, guest, from FL, United States, asked on November 05, 2022

I have a Springfield xdm elite, will it fit a holosun 407c

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on November 08, 2022

The Holosun 407/507K Sight Mount MOS Adapter will not work with the Holosun 407C or Springfield XDM Elite. If you have a OSP model with the optic mounting plates the RMR compatible mounting plate will work with the Holosun 407C.

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Q
Tim, guest, from OH, United States, asked on October 26, 2022

I have a Canik Mete SFx what optic plate do you have?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on October 28, 2022

We do not have a Holosun 407/507K Sight Mount adapter for the Canik Mete SFx.

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Q
MKIII, guest, from ID, United States, asked on October 20, 2022

I have a holosun 407k-x2 that I need to mount on a pic rail. Any idea where I can find a mount adapter?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on October 25, 2022

You would need to purchase a Leupold Deltapoint Pro picatinny rail adapter and modify it by removing the rear recoil lugs and shortening the front lugs. I would recommend the Leupold Deltapoint Pro Cross Slot Mount, found by using the link below:
https://www.opticsplanet.com/leupold-deltapoint-pro-cross-slot-mount.html

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