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.
This expert review from Brass Facts assesses the Surefire M640 Turbo, a weapon-mounted light designed to reclaim Surefire's market dominance. The review highlights its impressive 100,000 Candela and 700 lumens output, competitive pricing, and the new Surefire Pro Mount system. It details performance comparisons, battery options, and practical reliability testing over 2,500 rounds, concluding that Surefire is back in the game with this offering.
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