Precision Grip Lite V1.2.1 (AR-15): FFFTech/FFFTechnology A reduced material version of the original Precision Grip design. Retains the thumb rests and the finger grooves. The palm rest is omitted, and the grip length is shorter for reduced weight. Three variants are available: *Standard *Non Grooved, Standard *Non Grooved, Cross Cut Update: Non-Grooved design variants added, document updated with Ender 3 V2 print parameters. Printer Used: Ender 3 V2 Filament Used: PLA+ Print Settings: Extruder: 220C Bed: 56C First Layer Print Height: .18mm Standard Layer Height: .16mm Wall Thickness: .40 Wall Perimeters: 5* Infill: 20%* Infill Pattern: Gyroid Material Flow: 100% Support Material Percentage: 20% (Support material only needed for finger grooves and underside of thumb rests) Hardware Needed: 1x Allen Head Screw, 1/4-28 x 1" 1x Steel Star Washer 1x Safety Selector Detent Pin 1x Safety Selector Detent Spring