The Arisaka Offset M620 Adapter is used to attach Surefire M620, M951/952/962 series lights to the Arisaka Offset Scout Mount and Side Scout Mount. The recessed design maintains a low profile. Lateral positions are still available while using the M620 Adapter, which allows you to shift the light closer or further away from the top Picatinny rail for clearance around front sights or other top rail mounted accessories when used with the Offset Scout Mount.Features :CNC Machined from 6061-T651 AluminumType III Hard Coat Anodized,Hardware: (2) 10-32x1/4" Hex Button Head Screws, (2) 8-32x3/8" Torx Flat Head Screws,,Requires a 1/8" Allen Wrench and an IP20 TorxPlus Driver for Installation (Not Included),