Arisaka Defense Series Weaponlight Body Compatible with SureFire M600DF/Dual Fuel Parts Anodized Finish Black. The 18650 Series Light Body is manufactured without the mounting interface for the stock Picatinny clamp. This greatly increases the clearance for front sights when used in combination with the Arisaka Inline Scout Mount on handguards with 45 degree mounting surfaces adjacent to the top Picatinny rail. It will also fit in any aftermarket Scout mount" as it retains the mounting holes and square lug interface on the underside of the light body. Specifications for Arisaka Defense 18650 Series Weapon Light Bodies: Manufacturer: Arisaka Defense Finish: Anodized Additional Features: Weaponlight Scoutlight Condition: New Battery Type: 18650 Package Contents: Arisaka Defense 18650 Series Weapon Light Bodies