C&H Precision Weapons Sig P320 X-Romeo1 with Holosun 509T Adapter Plate

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

In Stock

Standard orders will ship out in 1 business days or less if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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If you own a Sig X-series with a factory-cut Romeo1Pro/DPP slide and want to improve accuracy, you can upgrade to a Holosun optic system.  To get the best performance from these mounted optical systems, you will need this adapter plate with compatible drilled and tapped mounting holes and integrated rear sight from C&H Precision. 

  • Compatible: Holosun 509T 
  • Sight: Integrated Rear Sight
  • Material: Stainless Steel
  • Fits: SIG P320 Legion X-FIVE, Sig P320 M17/18
  • Slide: Must Be Factory Romeo1 DPP Cut

With this plate from C&H Precision Weapons, you can mount your optic system easily in minutes.

Made right here in the USA, this optic mount plate with integrated rear sight made for the Holosun 509T optic system allows you to change to an optic solution at a surprisingly affordable price.
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BrandC&H Precision Weapons
Optic TypeHolosun 509T
PlatformSIG Sauer Handguns
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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Great plate, poor sight


The plate install was extremely simple, didn't even need to refer to the instructions. The plate feels solid and dropped in with a positive click and did not budge once installed. Obviously the plate will add a little bit of height over bore, but it is not a deal breaker. The only reason I would give this product 4/5 stars is because the rear sight isn't really functional. The rear sight is practically flush with the 509t and doesn't really give you much use. Save yourself a few bucks and just go sans iron sight or buy an RXP P320 if iron sight are a necessity.