South Korean Military Grade Red Dot Sights – DI Optical
DI Optical manufacturers military grade red dot sights intended for military and civilian markets. DI Optical USA has been established to import civilian versions of their military offerings for the US market. I’ve been using several of the DI Optical red dot sights for about a year now and I share my thoughts.
The belt is by High Threat Concealment: https://www.youtube.com/watch?v=HF3zjnrPhkw
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