Elzetta Tactical Lighting if offering 20% off on all lights! No affiliation beyond owning four of their lights. They're pretty expensive but absolutely bombproof lights made for hard use by mil and LE customers. They rarely do sales so if they have something you want this is the time!

The code is BLACKFRIDAY21 is good til the 29th!
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman