Eagle Industries has been around for a long time and that's for good reason. 

The Eagle Industries wedge Style single M4 Magazine Pouches are a structured single rifle magazine pouch for reliable insertion and extraction comes that come in black, MultiCam®, gray, or coyote brown. The mag pouches are constructed of MIL-SPEC 500 denier nylon. FB-Wedge Style thermo-plastic insert holds pouch shape for easy insertion and extraction. They have an open top with bungee retention and are MOLLE compatible. The pouch fits 1 M4 magazine.