Holosun EPS MRS [red]This red dot uses the Holosun K Series footprint standard. The EPS RD MRS is a full sized, enclosed handgun sight featuring an aspheric lens for a perfectly clear sight picture. EPS RD MRS has an ultra low dot height for compatibility with most factory iron sights and utilizes Holosuns proven K footprint. EPS RD MRS includes an RMR to K footprint adapter plate for maximum compatibility. EPS RD MRS features Holosuns 650nm Red Super LED with Holosuns