MP5 Mag Insert for STANAG (M16/M4) Mag Pouches

I just added an MP5 to my airsoft collection, but all my gear is made to carry STANAG (M16/M4) magazines. Two of the slimmer MP5 mags fit in a STANAG pouch together, but take one out and the other will flop in the pouch freely. That's why I created this pouch insert that separates the space and puts a bit of tension on the mags so they don't fly out.

I created a version with a long tail that can hook into the bungee retention of many open top pouches to secure it into place. There's also a version without the tail for closed top pouches that won't need it.

After printing, break the tensioning flaps loose from the base. It should be easy due to the tiny contact area.

Printed on Prusa MINI with 0.6mm nozzle and 0.35mm layer height. The 3D model is solid, but you can create the pictured effect by selecting a honeycomb infill pattern and removing all top and bottom solid layers. I'm including the preset 3MF files so you can have a look at the slicer settings.