PRODUCT FEATURES Vector Optics MOJ to VOD Adapter, aka, RMR to ACRO Adaptor Plate Used for SCRD-63 Line Enclosed Red Dot Sight Extreme Low Profile, Fit on MOJ Interface, Precision CNC Machined, Made of Steel SPECIFICATIONS Length: 44.5mm / 1.8in Width: 28mm / 1.1in Overall Height: 7.5mm / 0.3in Height: 5mm 0.2in Slot Width: 4mm / 0.15in Slot Depth: 3mm / 0.12in Material: #45 steel Finish: Black matte Specifically designed for Vector Optics VOD footprint enclosed red dot sight, compatible with RMR Weight: 41g / 1.4oz Precision CNC machined Come with 1 pair of M4x6 screws