This is quite interesting.

It's my understanding that on Smith & Wesson's super light weight titanium/scandium revolvers, there is a chance the internal lock system will engage itself under recoil.

The recoil of these super light weight revolvers can be quite a lot with full power loads, so it's plausible for the ILS to engage itself under recoil.

With that said, does the "Plug" prevent the remaining parts of the ILS from engaging under recoil or any other mechanical failure?