Anti-Reflective Device
thingiverse
This is a straightforward Anti-Reflective Device (ARD, Killflash) designed specifically for a red dot sight with an outer diameter of 38 1/4 mm. I built this particular one (https://www.amazon.com/gp/product/B010OMQSR2/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1) with a slightly larger diameter to accommodate electric tape for a custom snug fit. The honeycomb design is centered, ensuring the red dot aims directly through the center of one of the openings. The main goal of an ARD is to prevent sun reflection visible to others, reduce sun glare for yourself, and provide protection against airsoft BBs, tree branches, etc. This ARD weighs approximately 12 grams.
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