Just got a Stribog and didn’t want to change out my range belt or vest pouches when switching between guns. Designed up this dohickey today (probably been done before).
It’s sized to be retained by the side prongs of the insert and the Kydex of the ESSTAC pouch when the mag is removed, but when you put a Stribog mag in it the Kydex acts 100% on the mag. No other mods needed and the insert removes in a few seconds.
Retention of the Stribog Mag is exactly the same as an AR mag.

Nice!  Looks like a good simple fix.

Dang, that's pretty damn cool!

You should make a few and throw them in your range bag. That way, you'll always have them with you when you head out to the range and can change on the fly if you take both guns with you (...why wouldn't you? )

You could probably sell those.

Dude that is shit-hot!

Yes that is neat. Want to share your file or sell a few?