Closed Emitter Cult: Holosun 509 ACSS Vulcan
This guide details the installation of the Holosun 509 ACSS Vulcan optic, emphasizing critical considerations for mounting, particularly on Glock platforms. It highlights potential screw length issues that could cause extractor rod interference, a crucial point for ensuring firearm reliability. The review also touches on the optic's unique ACSS Vulcan reticle and its performance benefits, including night vision compatibility.












