The C&H Precision plates are designed, manufactured, and shipped from our 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. Converts Sig Sauer M17/M18 to Trijicon RMR footprint. Adds Glock Style rear sights dovetail.Features : Thickness: V4 MIL / LEO Plates are .095" to .099" thick Material: Plates are made from mild-grade steel. All mounting hardware is Stainless Steel Finish: Plates are MIL-SPEC Type III Hard Anodized - Black INCLUDED: Qty 1 - Optic Plate, Qty 2 - M3 Plate mounting screws, Qty 2 - 6-32 RMR Mounting Screws, Qty 2 - 6-32 Holosun Screws Adds Glock rear sight dovetail