This guide details the installation of the Surefire 640 DFT Scout Pro tactical flashlight onto an M-LOK handguard. It covers proper screw insertion, M-LOK tab orientation, torque specifications for metal and polymer handguards (30 in-lbs and 15 in-lbs respectively), and crucial visual checks to ensure secure and safe mounting. The video emphasizes achieving optimal light placement for weapon control and comfort.
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