L-X22 Iron Sight Picatinny Rail (10/22 Compatible): Laffs Dynamics Picatinny rail for the L-X22 Model O (Optics) reciever. Designed with a rudimentary fixed set of iron sights built into the rear and front sections of the rail. Printer Used: Ender 3 V2 Filament Used: PLA+ Print Settings: Extruder: 220C Bed: 56C First Layer Print Height: .20mm Standard Layer Height: .16mm Wall Thickness: .40mm Wall Perimeters: 6+ Infill: 30%+ Support Material Percentage: 28%+