Head, Rifle and Shoulder parts for LUCKY 13

I tried to respect the original design as much as possible. Print settings: Filament: PETG, PLA Layer height: 0.15mm Supports: no Perimeters: 2 05/04/2022 Add shoulder parts "CShoulder.stl", "EShoulder.stl" 09/04/2022 Add shoulder parts "GShoulder.stl" 17/04/2022 Rifle model update to v2 The length of the stock has been reduced 3 mm to make it easier to hold.