Firearm magazines are used "jungle style" if they are fixed together side by side, often with tape. The spare magazine may be pointing downwards in relation to the one fitted to the weapon.

This configuration is used to speed up the process of reloading, since a loaded magazine is attached to the one in use. Disadvantages include an increase in the risk of stoppages due to the exposure of the rounds and magazine lips to dirt (particularly if the second magazine is inverted), possible loss of ammunition, and that the extra length of two magazines together can raise the profile of a soldier in the prone position.