Glock Ghost Ring Rear Sight by FFFTech/FFFTechnology A ghost ring sight, compatible with standard 6.5mm height Glock front sights. Not as precise as standard notch sights, but quicker to acquire a sight picture on target. Racking the slide from the top can be aided by the rear sight's overall height. Printer Used: Monoprice Maker Select Plus Filament Used: PLA+ Print Settings: Extruder: 204C Bed: 54C First Layer Print Height: .20mm Standard Layer Height: .14mm Wall Thickness: .40 Wall Perimeters: 4 Infill: 20% Infill Pattern: Gyroid Material Flow: 100% Print in PLA+ or stronger material (Not Standard PLA) Print the sight on it's front face.