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C&H Precision Weapons Holosun 509T Adapter Plate
As Low As $55.99 Save Up to 28%
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Does not work with 509T X2

by Jordan Nation, Verified Owner from IL, United States Written on July 18, 2025
I bought this to mount to my IWI Masada, hoping it would allow my aftermarket iron sights to co-witness. The 509T x2 does not mount to the plate. I know it's not a user issue because the plate that came with the optic fit together with no issues but sits up too high to co-witness. This review isn't against optics planet but against the manufacturer of the product.
Would recommend: No
Was it helpful to you? Yes | No

Does what i want

by Kenneth H, Verified Owner from AZ, United States Written on November 20, 2024
The #1 plate that's an RMR footprint doesn't work with the 509t, so I needed a plate that did. It's extremely thin, and I can say the screws are absolutely an upgrade over stock holosun or M&P screws. I stripped an M&P screw with a fix it stick kit just taking off the stock plate, and I've had holosun screws sheer off from recoil. So definitely a nice change seeing better quality screws and the plate works amazing. I'd recommend using vibra tight for short holosun screws instead of blue lok tight. Hope this helped
Pros:
  • Sturdy
  • Upgraded
Cons:
  • None
Best Used for:
  • Mounting a 509t
Would recommend: Yes
Was it helpful to you? Yes | No

Fits well as advertised

by Dre, Verified Owner from MD, United States Written on January 8, 2024
Works very well, approx. 100 rounds with the 509t mounted. No issues whatsoever. Got the plate on sale at optics planet so that’s a plus. No complaints here.
Pros:
  • Works well. Fits perfect
Cons:
  • None
Best Used for:
  • duty carry
Would recommend: Yes
Was it helpful to you? Yes | No
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