Fidget keychain - BB Ruger Mark IV

This is a compact 3D-printed fidget keychain inspired by the Ruger Mark V aesthetic.It features simple moving parts, making it a satisfying mechanical fidget toy.Despite its firearm-inspired appearance, this model is strictly non-functional and designed purely as a decorative accessory or stress-relief gadget.The design prints easily, assembles quickly, and looks great in two-tone color schemes. Perfect as a keychain, desk toy, collectible, or small gift for makers. ⚠️ This model is purely decorative.It is not a weapon and cannot be converted into one.Assembly note⚠️ For proper mechanism operationmake sure to insert a small rubber band (20–30 mm diameter). Print SettingsMaterial: PLA / PLA+Layer height: 0.16–0.20 mmPerimeters: 2–3Infill: 15% (Gyroid or Grid)Nozzle temperature: 200–210°CBed temperature: 55–60°CSupports: Minimal – only for small overhangs on the upper bodyRecommended tolerances: 0.25–0.35 mm for all moving interfacesPrint speed: 40 mm/s for small parts