This is a replica of the M57 Firing Device. This replica is designed to simulate the appearance of original firing device that is part of the M68 Claymore Practice Kit, however this replica does not have any functioning parts or internal components.
The plug is compatible with our replica M10 Blasting Cap Wire Reel Assembly (sold separately) via friction fit.
The complete replica M68 US Claymore Mine Kit can be found by clicking this link.