Arisaka Defense Offset Scout Mount, Q-Sert, Black The Arisaka Defense Offset Scout Mount OSM-QS is the Q-Sert version of the offset light mount. It attaches to Q-Sert direct-thread handguards and is not the M-LOK version. The handguard interface is the essential fit detail: Q-Sert direct threading differs from an M-LOK interface, so the Q-Sert model must be matched to a Q-Sert handguard. The offset layout positions a compatible light alongside the handguard rather than directly above it. Two sets of light mounting holes provide fore-and-aft choices, while three lateral positions allow the light body to sit closer to or farther from the top rail. An integrated anti-rotation QD swivel socket adds a separate sling connection. The black anodized finish identifies the exterior finish, and the mount's listed 0.5-ounce weight keeps the component compact without adding a rail adapter to the Q-Sert interface. Key Features Q-Sert-only interface: Designed for Q-Sert direct-thread handguards. Offset light placement: Provides an offset location for a compatible light body. Position options: Two hole sets and three lateral positions provide mounting-location choices. Integrated QD socket: Includes an anti-rotation quick-disconnect swivel socket. Specifications Manufacturer: Arisaka Defense Model: Offset Scout Mount Interface: Q-Sert Finish: Black anodized Length: 2.43 inches Weight: 0.5 oz Compatibility Q-Sert handguards with compatible Scout-pattern light bodies, including Surefire M300/M600, Arisaka 300/600/18650 Series, Modlite PLH/OKW and Streamlight Protac Rail Mount models specified by Arisaka. Shop the Arisaka Defense Offset Scout Mount, Q-Sert, Black at BattleHawk Armory.