The C&H Precision PLT 320 X-FIVE to HOLO 509T is an optics adapter plate engineered to allow HOLO 509T and Romeo1PRO/DPP footprint red dot sights to be mounted to Sig P320 X-Five pistols (M17/M18). These plates are precision machined on HAAS CNC equipment and undergo multiple quality checks during production at C&H Precision’s Georgia facility. The design emphasizes serviceability, with replaceable mounting hardware and included mounting screws to simplify installation and maintenance.
Key Specifications
- Fits Sig X-Series pistols, including P320 X-Five (M17/M18).
- Compatibility with HOLO 509T and Romeo1PRO/DPP-style optic footprints.
- Manufactured via HAAS CNC machining for consistent tolerances.
- Includes mounting screws for installation.
- Features a patented stainless steel T-Nut providing six to seven threads of engagement.
- Mounting hardware is replaceable to avoid full plate replacement if hardware is damaged.
- Color is listed as Black with a Matte finish.
- Product type is an Optic Specific Mount designed for pistol slide installation.
Cleanly engineered and focused on long-term serviceability, this adapter plate provides a precise, secure interface between popular micro red dot footprints and the Sig P320 X-Five platform. Its replaceable hardware and robust T‑nut engagement make it a practical choice for shooters seeking a reliable mounting solution that is simple to maintain.
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