Uncle Mikes Kydex Double Mag Case gives your magazines the same protection as your firearm. The internal tensioning device is for security, and it fits belt loops up to 1 3/4" or can be clipped over a waistband.
Specifications:

Type	Mag/Cuff Pouch
Color	Black
Material	Kydex
Size	Fits Belt Loops up to 1.75"
Model	Double Magazine Pouch
Finish	Smooth
Model Fit	9mm/40 Cal
Mount Type	Belt Clip
Belt Size
Shell Count	None
Caliber or Gauge
Compartments