The Night Fision Optic Plate + Backup Sight Combo delivers premium co-witnessing sights integrated with a precision optic mounting solution for Glock 43X/48 MOS pistols. Machined from 17-4 stainless steel with nitride coating for maximum durability and recoil resistance.Night Fision Optic Plate + Backup Sight ComboCompatible with Holosun 507K and other optics with matching footprintFits Glock MOS Slimline models (43X/48)Co-witnessing backup sights includedMachined from 17-4 stainless steel with nitride coatingIncludes installation tool and extra screwsBuilt to tightest tolerances for secure accurate fitPerfect for shooters seeking a reliable red dot mounting solution with integrated backup iron sights ensuring you're always ready whether your optic is functioning or not.