Tokyo Marui SIG Series Electric Gun 60-Round Standard Magazine 3-Piece Set, Some Defects

Selling as part of my collection.
Used packing materials may be used for shipping.
Sold as a set only. Feel free to make an offer.

This is a set of 3 60-round magazines for Tokyo Marui SIG series standard electric guns.
All magazines are standard capacity magazines where BBs are loaded from the feeding port.
Please note that these are not wind-up type magazines.
The items for sale are used. I do not own an electric gun, so feeding functionality has not been tested.

I am not an expert on electric guns, so the exact lot is unknown. Unlike current models, these do not have dummy cartridges decorated inside the magazine, so they are likely older models. I also do not know which lots of SIG series standard electric guns they are compatible with. Recommended for purchase by those familiar with Tokyo Marui products.

The magazines have scratches and dirt overall. BB loading and unloading were possible.
One of the magazines has a crack in the part used for connecting. As these are likely older products, I have not tested magazine connection as they may break when connected.

How about adding them to your collection?