This model is untested so far, but my similar AR15 mag-rack works very well.
Suited for Heckler & Koch™ G3 magazines, which are used in rifles and carbines of the their G3 series – as well as in variants like the HK91 and the American-made PTR-91.
Only the outer perimeters are modeled, so you must print this in spiral vase mode. Use external-perimeter extrusion width of 1.2mm. Total thickness of solid bottom layers should be at least 1mm.
The author remixed this model.
Resized compartments to suit G3 magazines.