Arisaka Defense Offset Light Mount For SureFire Scout Light Weapon Lights Fits MLOK Sig Sauer MCX Anodized Finish Flat Dark Earth. It replaces the stock Picatinny rail adapter with a low profile mount for Sig Sauer MCX and Virtus handguards. The Offset Scout Mount is very low profile at less than 0.20" thick. This version of the Offset Scout Mount is designed to fit the side vent holes along the top edge of the OEM handguards on the MCX and Virtus. This places the light at a 45 degree angle and tucks it in closer to the top rail at the 1:30 or 10:30 clock positions. The Offset Scout Mount also provides three lateral mounting positions for the light body which allows the user to position the light closer or farther away from the top rail front sights or other accessories. Three positions are provided spanning approximately 0.240". When used with the Arisaka 300 Series Light Body or 600 Series Light Body even more clearance can be gained. Compatible with Surefire M300A M300B M300C M600B M600C M600P M600U M600V M600DF Streamlight Protac Rail Mount 1 2 and HL-X and Arisaka 300 and 600 Series. M620 series lights can also be used with the Offset Scout Mount with the addition of the Arisaka Offset M620 Adapter. The mount is CNC machined from 6061-T6 aluminum and MIL-A-8625 Type III hard coat anodized. Includes necessary screws to attach light body to mount and backer plate. Requires a 5/64" and 1/8" Allen wrench for installation (not included). made in specialized factories. Specifications for Arisaka Defense Offset Scout MCX and MCX Virtus Mount: Manufacturer: Arisaka Defense Fabric/Material: CNC machined from 6061-T6 aluminum Finish: MIL-A-8625 Type III Hard Coat Anodized Length: 1.265 in Gun Rail: M-LOK Package Contents: Arisaka Defense Offset Scout MCX and MCX Virtus Mount