C&H Precision Weapons, CHP Adapter Plate, Converts the CZ P-10 Optic Ready to the Holosun 407/507K, Anodized Finish, Black, Includes Mounting Hardware NEW For Converting the CZ P10 (Optic Ready) to the Holosun 407K/507K Plates Are Made from 6061 Aluminum Stainless Steel Mounting Hardware Made in the USA Product Description The C&H Precision plates are designed, manufactured and shipped from their small family owned business in Coastal Georgia. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to our customers.