Picatinny Mount CAD Template (4mm Bolt): FFFTech/FFFTechnology STL and STEP files of an accessory mount template that attaches to 1913 Picatinny rails. I designed this model myself for developing accessories for modern carbines and the like. These files are intended to aid in firearm accessory design. Whilst they can be 3D printed, they're mainly meant to be used in CAD software such as Fusion 360. Printer Used: Ender 3 V2 Filament Used: PLA+ Print Settings: Extruder: 218C Bed: 56C First Layer Print Height: .20mm Standard Layer Height: .16mm Wall Thickness: .40 Wall Perimeters: 3 Infill: 20% Infill Pattern: Gyroid Material Flow: 100% Hardware Needed: 1x M5x30 Hex Socketed Machine Screw/Bolt 1x M5 Hex Nut (Be sure both bolt & nut are the same thread pitch.) Accreditations: Internetpizza: Aided in testing fitment between picatinny rail and the mount template. Gave data on fitment errors with previous designs, that led to a mass update of most previous design releases. Led to the publishing of this template version.