C&H Precision P320 X-FIVE/M17/M18 Holosun 509T Optic Mount

A Sig P320 X-FIVE/M17/M18 and Holosun 509T setup calls for a plate cut for both sides of that interface, and the C&H Precision P320 X-FIVE/M17/M18 Holosun 509T Optic Mount fills that role. This version is finished in matte black and is intended for the exact compatibility shown here. It is part of C&H Precision's V4 adapter family.

Optic plates are not interchangeable simply because two sights have a similar overall size. On Sig P320 X-FIVE/M17/M18, the firearm cut still has to match the lower side of this plate. The sight also needs the Holosun 509T footprint for the upper interface to line up correctly.

The practical reason to select this plate is its exact Sig P320 X-FIVE/M17/M18-to-Holosun 509T compatibility. Keep that pairing in mind if you later change optics, because a new footprint may also mean a new plate. Find other optics and rangefinders for alternate mounts and electronic sights.

• Sig P320 X-FIVE/M17/M18 compatibility
• Holosun 509T optic fit
• Matte Black finish
• C&H Precision V4 adapter