C&H Precision GLOCK MOS V4 MIL / LEO to Holosun 407k & 507k Adapter Plate

Manufactured by C&H Precision Weapons
Manufactured by C&H Precision Weapons
1 Review

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The Modular Optic System, or MOS, allows Glock handguns to attach MRD (miniature red-dot) sighting systems. As part of the MOS, the Glock pistol has a cut in the slide designed to accommodate optics, using a series of adapter plates. However, OEM mounting plates are not always satisfactory. 

To meet the demand for superior adapter plates, C&H Precision introduced the V4 Series for GLOCK MOS full size pistols, featuring C&H’s patent-pending replaceable stainless-steel T-Nuts and Torx-head screws. These screws allow you to mount the RDS (red-dot system) to the V4 plate, changing the mounting hardware without replacing the adapter plate.

  • For Full Size GLOCK MOS Pistols
  • Patent-pending replacement stainless-steel mounting hardware
  • Industry-leading thread engagement for increased MRD retention
  • 6061-T6 aluminum-alloy adapter plate
  • Hard-coat mil-spec anodizing

  • GLOCK MOS: G17, G19, G22, G23, G34, G35, G40, G41, G45, G47
  • Holosun: 407K/507K

C&H Precision emphasizes that the adapter’s plate material isn’t the key to effective MRD retention — it’s the threading. The company’s industry-leading thread engagement — six to seven full revolutions — ensures that the MRD will remain securely fastened to the adapter plate, and the gun, during recoil. 

The adapter plate hardware is made from stainless steel to increase corrosion resistance. This variant of the V4 Series is designed for Holosun 407K and 507K red-dot sights. Housing in 7075-T6 aluminum, the 407K features a 6-MOA aiming point, up to 50,000 hours of battery life powered by one CR1632 cell, and the “Shake Awake” function. Ultra-light, the 407K weighs only one ounce. The 507K, which the V4 Series plate is also with, substitutes a 2-MOA dot encircled by a 32-MOA ring.
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Accessory AttachmentGLOCK MOS
BrandC&H Precision Weapons
Mount CompatibilityHolosun 407K/507K
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

1 review

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One of a Kind


This product works perfectly with my glock 19 team and I must say that that when I 1st start looking for a plate to fit My glock I was a bit skeptical because I because I kept on Running into Roll the blocks. But then I came across This product and I ordered it Being that it took forever it was still worth it.