Holosun 407/507K Adapter | RMR to HS507C | Black

This adapter plate from Holosun provides a mounting interface between optics using the HS507C footprint and slides or plates cut for the Trijicon RMR (407/507K) pattern. It is a compact mounting solution intended to enable straightforward optic swaps where footprint compatibility differs. The plate ships with the necessary installation hardware and is described by the manufacturer as backed by a lifetime warranty.

Common applications include everyday carry (EDC) optic conversions and range/target shooting setups where cross-platform optic interchangeability is desired.

Product Specifications

• The brand is Holosun.
• The model is listed as the 407/507K Adapter for RMR.
• The adapter uses the Trijicon RMR footprint to interface with HS507C-pattern optics.
• The color is specified as Black.
• The length measures 1.78 inches.
• The package contains 1 piece.
• The style is categorized as a Red Dot Optic Mount.
• The product type is listed as an Adaptor.
• The subcategory is Mounting Accessories.
• The item is noted to include installation hardware.
• The manufacturer description references a lifetime warranty.
• The weight is recorded as 0.08 (unit not specified by source).
• The UPC is 810047071167.

This adapter is intended for shooters who want a straightforward, compact solution to mount HS507C-footprint optics on RMR-pattern plates or slides. Its low-profile design minimizes added bulk while providing a stable platform for compatible red-dot sights.