Upgrade your SIG Sauer P320 X-Five, M17, or M18 with the C&H Precision V4 Optic Plate, engineered for a precise and reliable transition to the Holosun 509T enclosed-emitter optic. This steel adapter plate delivers the durability and stability serious shooters demand for duty, competition, or defensive applications.
Key Features and Benefits
- Patented stainless steel T-Nut system offers 6-7 threads of engagement for superior optic retention and reduced risk of loosening
- Replaceable stainless steel mounting hardware allows easy field repairs without replacing the entire plate
- Includes two M4 plate mounting screws for complete, ready-to-install hardware
- Designed specifically for Romeo1Pro/DeltaPoint Pro optic cuts on compatible P320 models, enabling seamless Holosun 509T integration
Specifications
- Material: Mild-grade steel
- Thickness: .095″–.099″
- Finish: MIL-SPEC Type III hard anodized black
- Hardware: Stainless steel (replaceable)










