No what I actually did was put the current velcro covers, deep inside the back of the pouches, the top of them basically just sits under the top of a mag when its inserted. Then I ran a complete length of shock cord through the front molle's, then through the loops on those covers, and back to the front molle. The back covers keep the tension on the mags from the back, and when you pull a mag, it ends up springing forward and holds the remaining mag just enough so that its not super loose and chance of falling out.
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W1-5
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