I uses it on anything that has molle webbing on it. Magazine pouches on battle belt, Battery Pouch on the outside of the 6x6 medical pouch, shotshell pouches on the front of the vest, hydration carrier on the back of the vest. You can even just hook on to the molle webbing for addition protection of all the accessories.
This review was written in the old system and had content requirements that are different than reviews written today.