Walther DEFENSE PDP 1.0 to Holosun 407K / 507K



(5 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: $148.62

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.

Most of our plates feature a patented stainless steel T-Nut which provide an industry leading six to seven threads of engagement.  Since all the mounting hardware is replaceable, if any mounting hardware is damaged it can be replaced without replacing the entire plate.


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

Replaceable 416 Stainless Steel T-Posts for maximum thread engagement


Qty 1 – Optic Plate

Qty 2 – M3 Plate Mounting Screws

Qty 2 – 4-40 Optic Mounting Screws

Qty 2 – Patented 416 Stainless Steel T-Nuts

Additional information

Weight 1 lbs
Dimensions 6 × 1 × 1 in



5 reviews for Walther DEFENSE PDP 1.0 to Holosun 407K / 507K

  1. phastrone (verified owner)

    I couldn’t be happier with the quality of this adaptor plate. The fit is so precise that I had to tap the 507K into place with a soft hammer; at which point it clicked right in…Great product. “You get what you pay for.”
    Gilbert AZ

  2. William Jones (verified owner)

    I have had great success in using this 407k/507K plate adapter on two separate Walther PDP Gen 1 Pistols.

  3. anthonylawrencebutler (verified owner)

    The plate arrived well packed and with all necessary screws, instructions, and a pinkish screw securement compound needed to install the plate. All a buyer has to do is install the plate using the proper torque. Although I I have not permanently installed the plate, I did fit the plate and a Holosun 570K on my Walther PDP compact (4” barrel). The fit is perfect. I also like that the Walther branding is on the plate. Many thanks for a well made product and for the many product support videos.

  4. scotthmarsh (verified owner)

    I read many online reviews saying this plate was the best to use so I decided to try out. In addition, the Holosun 507k would only fit on to my Walther PDP using this plate so I purchased. It is a bit more expensive but excellent quality and a better fit than a standard plate. No issues installing and the instructions and included screws did the trick! Excellent plate and great quality – highly recommended.

  5. Ross Kasminoff (verified owner)

    Easy ordering, fast processing and fast delivery. A little pricey imho, but it fits perfectly on my Walther PDP Compact.

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