Mod makers 510 Positive Safety lock
Designed to fit onto the standard positive nut on the MM510. This delrin injection molded positive lock pushes onto the MM510 Squonker Connector without having to disassemble it.
The tolerances of these make it loose enough to not undo the nut when used.
Please note that this is for the delrin lock only. The 510 Connector is NOT included. 510 lock for mechanical squonk box mod.