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why is this red dot not on their website. And what is the difference with the HE509T-X2 ??? Thanks — 1 Answer

by Dre, from NC, United States Asked on September 17, 2022

Name Primary Arms Holosun HE509-RD Enclosed Solar Powered Red Dot Sight (3.6)
$529.99 $469.99 Save 11%
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Answered by Ethan, Gear Expert, from IL, United States, on September 20, 2022

This Holosun Enclosed Solar Powered Red Dot Sight uses the ACSS reticle and includes an MOS mounting plate to directly mount to MOS model Glocks. Other models of the 509T are offered with Holosuns 2 MOA dot and 32 MOA circle, not the ACSS reticle, and include an RMR adapter plate, not an MOS plate. For more information, feel free to email us at Techsales@opticsplanet.com.

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Last updated 2025-11-12 UTC.