Spectra Precision MM-1 Magnetic Mount The Spectra Precision MM-1 Magnetic Mount is a heavy-duty receiver mounting accessory designed for fast attachment of compatible LR series laser receivers to excavator and backhoe dipper arms. Featuring strong dual magnets and an adjustable mounting design, the MM-1 provides secure positioning around hydraulic hoses and piping for quick setup in excavation and grading applications. Key Features • Compatible with all Spectra Precision LR receivers • Strong dual magnet packs resist slipping on machinery • Adjustable magnets fit around hoses and hydraulic piping • Integrated release lever for quick removal from equipment