ustacticalsupply.com/anglecosinelevelacl
Tags: U.S. Tactical Supply
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on Tuesday, January 20th, 2015 at 12:00 and is filed under Optics.
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Neat idea. Incorporate something to enhance contrast and/or incorporate luminosity like H3/Trit vial or Super-LumiNova background and I’ll think about upgrading my ACIs and taking off the separate levels.