Taginn mag

This im my Mag for taginn rounds (without shell). It has a wieving window and can hold 4 shells. On the back is a big area for velcro to fix it ot a belt, vest, platecarrier or backpack.
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Additonal parts are a self wound Spring (recommend 1.5mm springsteel wire) with the dimensions of 82x26mm and between 5 and 10 turns