GLOCK MOS V4 MIL/LEO to Holosun 509T




(14 customer reviews)

In stock (can be backordered)

Frequently Bought Together

Holosun 509T to GLOCK MOS Adapter Plate +
Price for both: $69.90

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 – M3 Plate Mounting Screws

Qty 1 – VC3 Thread Locker

Additional information


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14 reviews for GLOCK MOS V4 MIL/LEO to Holosun 509T

  1. George Begonia (verified owner)

    I run CHPWS adapter plates on all of my OR guns, and the fit n finish is 110% better than the Glock OEM adapter plates. Highly recommend!

  2. carguytanner (verified owner)

    Absolutely no comparison to the stock MOS plates. From the fitment to the finish this is a far superior option to what comes with the Glock. So thankful for a company such as C+H to provide a rock solid option for mounting the dot on my duty rig. I’d trust my life on it.

  3. jmrussel (verified owner)

    Solid product and sturdy construction. I have C&H plates on all my optic pistols, this one makes four. Great quality and easy installation.

  4. Ryan Senn (verified owner)

    Works perfect on my G34 MOS slide. I tried several other options and this is perfect. There was no movement of my 509T. Everything feels very solid. I’ve put about 500 rounds through it (after zero) and it’s still tight. Get this for sure

  5. jerodf98 (verified owner)

    Made with precision. Good product, great customer service

  6. Philip Thomas (verified owner)

    Great product, terrible customer service. I paid for one day shipping and it took them 4 days to ship the order, I understand the one day shipping is for how long it should take after it ships but I wouldn’t have paid for one day shipping if I knew it was going to take them all week to process and ship my order. I emailed and left a voicemail and got no response from C&H precision

  7. wkribs (verified owner)

    Didn’t even finish milling the plate before sending it out. Optic wont mount to plate, submitted a warranty claim but have yet to hear back.

  8. Frederick Bryant (verified owner)

    Great product. Fit and finish are perfect. Couldn’t get any better than CHPW adapter plate. Installed on my Glock 34 Gen 5 mos and ran 250 rounds through it semi rapid with no problems. I’m pleased with my purchase and will continue to use CHPW. Thanks

  9. Brock Davidson (verified owner)

    Perfect fit and properly designed to allow co-witness on my G40 with TruGlo suppressor height sights. No chance with the Glock plate and an adapter plate for the 509T…

    Additional ‘hump’ machined into the adapter plate to match slide radius is not only pleasing to the eye, but it cuts down on sharp areas to snag gun.

    Very well designed and thought out – I will be updating all of my plates to CHPS in the future and beyond.

  10. wesfox5 (verified owner)

    Really like this plate & the 509T. Fit perfectly. I’ve used other aftermarket mounting plates & this is by far the best!

  11. Walter Nash (verified owner)

    I am on my third CHPS adapter plate. They just work w/o any issues.

  12. scattergun7 (verified owner)

    Got my first plate for my Gen5 G17 MOS… This plate is very precise and fits perfectly. I wouldn’t get a plate from another company, I couldn’t be more satisfied with their product.

  13. ALPHAFOX (verified owner)

    I am pleased with this plate. I have not had the opportunity for any range time with the plate and sight on but I really like it so far. Maybe C and H precision will allow me to edit this review after I have run it through some range time.

    I installed as per instructional video.

  14. JamesB (verified owner)

    This product it the only plate that is authorized to be applied to our department issued firearm. Our range staff put several plate through a testing process and this plate by far out performed ever other plate. Glock factory plates didn’t even have a chance. Recommend this product plate to anyone need a high performance tool for their tool box (weapon platform) AA+

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