There was a vendor on here that sells (or at least used to) these custom made double sided 15 round magazines. I can't seem to find who it was or if they still sell them. Anyone remember who that was that sold them perchance??

wasn't a vendor it was a member here who had made his own.

You can too with some duct tape or if you don't want to be as noticeable use electrical tape.

there's a vendor on here that makes PMAG replacement floor plates that join two mags together.

there's a vendor on here that makes PMAG replacement floor plates that join two mags together.

Seems it would be rather long.

2 pmags chopped and jb welded together might work if you really want to go tactitard

 

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Isnt is just a bracket that holds two mags side by side? Like this?

 

Duct tape or bike inner tubes

 

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Heat shrink tubing should work too.