Aerospace aluminum alloy shell, Mil-Spec HAIII anodizing AR-coated, Hardened lens.
Red filter- Used for emergencies, caution, traffic signal and Hunting to not spook game. Great for penetrating fog or smoke. Does not disrupt night vision.
Green filter-Used for hunting and hiking. Green is also very popular for night time map reading and covert operations because it does not disrupt night vision.
Blue filter- Used for night fishing, tracking wounded game, and close reading.
Compatible flashlights: XT11 / XT11S / XT12S / XT11GT.
Compatible strike bezel: BZ-1.
Filter thread can also be used to attach other matching accessories.