Tier One Nightvision Thermal QD Rails - Pard Black Black. The UBM features their smooth cam QD system which offers micro adjustment and a smooth locking lever action. Along with three integral recoil lugs these features help ensure excellent picatinny rail engagement and return to zero properties. A secure lightweight mounting rail system for popular thermal optics. Does not work with PARD NV008S - PARD have changed the screw layout and footprint for this model. Precision milled from a solid billet of 7075-T6 aluminium alloy for a lightweight rigid and incredibly strong mount with repeatable accuracy. The Universal Base Mount weighs 138g including QD hardware and mounting screws. Optic specific rails weight approximately 110g with mounting screws. This is a mount only. Optics pictured are not included. Specifications for Tier One Universal Base Mount - Thermal & NV Optics: Manufacturer: Tier One Color: Black Fabric/Material: 7075-T6 Aluminum Weight: 248 g Package Contents: Tier One Universal Base Mount Tier One T1UBM-PARD07BLK: Nightvision Thermal QD Rails - Pard Black Black