C&H Precision V4, Optic Mounting Plate, For Glock MOS (Not 43x or 48) to Trijicon RMR/SRO, Holosun 407C/507C/508T/507 Comp, C&H EDC-XL/COMP, Anodized Finish, Black, Includes Mounting Hardware GL-RSH 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.