Aukmont 45 Degree Picatinny Weaver Rail Offset Side Rail Mounts 45 Degree Offset Rail allows the attachment of Lasers, Flashlights, Red Dot Sights or other Tactical Offset Canted Design creates more Mounting Versatility eliminating interference with Vertical Grips Perfect for Mounting a Backup Reflex Sight side by side with your Primary Optic. Ergonomic Design gives easy access to on/off switches for Flashlights, Lasers, or Red Dot Sights. Constructed of Solid Aluminum, Hard Anodized for corrosion resistance.