F1 Grenade (Mechanical Functional)

Here is another request from my followers, I Hope you like it gentlemen ;) Items Required: M4 Bolt x 50mm L+ washer + 2x Nuts + 12mm OD compression spring x 35mm L (1.8-2mm OD Music Wire) Cotter pin + split ring for safety ###As usual all building details will be in the make. If you are interested in other firearm parts and designs do join our group on keybase: Gun_Cad_Ideas. !!!Note: I'm always open for suggestion and help on improving the design and proof of concept. !Don't forget to check out my other Cool designs and Follow my Weekly dose of KooKoo uploads, Enjoy ;)