Adapter plate plus integrated backup iron sights for the Holosun EPS on Glock MOS full-size slides. The EPS is Holosun's compact enclosed-emitter optic — sealed window resists debris and weather. This plate provides both a secure mount and backup sights without overhang on the slide.
What you get:
EPS vs 509T: The EPS is the compact closed-emitter, the 509T is the full-size closed-emitter. Both seal against debris; the EPS is smaller and lighter. Choose based on whether you want a smaller or larger window.
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