Airsoft M67 cap ring impact nade, reusable, no hardware parts

Cap ring impact grenades designs are a dime a dozen, but this one uses no hardware parts! The lack of extra springs and the more realistically sized fuze means that the spoon doesn't fly off by itself, which is easily remedied with a flick of the wrist. Aside from the consumable 8-shot cap rings, the unit needs needs some shock cord / bungee cord (I recommend the 4mm or 6mm diameter variety). Using bungee you can adjust tension to your preferences, however I recommend getting it as tight as possible; cap rings are louder if struck harder. The pin holds the spoon tight against the hammer to keep it properly seated, but PLA can suffer from creep so squeeze the spoon tightly before pulling the pin. PLA is about as biodegradable as bio BBs, so if you lose the nade after a toss it won't be an ecological disaster, but do try to reuse these.