Glock Ghost Ring Rear Sight V2: FFFTech/FFFTechnology Version 2 of the original 3FTech Ghost Ring Rear Sight. Overall less bulky design. Aperture diameter reduced by .4mm. Compatible with standard 6.5mm height front sights. Printer Used: Ender 3 V2 Filament Used: PLA+ Print Settings: Extruder: 218C Bed: 56C First Layer Print Height: .20mm Standard Layer Height: .12mm Wall Thickness: .40 Wall Perimeters: 7 Infill: 28% Infill Pattern: Gyroid Material Flow: 100% Print the sight on it's front face.