BlackHawk's Single Magazine Case has a built-in tension spring, to hold your magazine in place until you need it and to allow the use of a variety of magazines in each pouch. This model is compatible with 9mm/40S&W45ACP/10mm/357Sig caliber single column mags. It also has a black matte finish.
Specifications:

Type	Magazine Holder
Color	Black
Material	Polymer
Size
Model	CQC
Finish	Matte
Model Fit	9mm/40 & Single Row 10mm/45 Magazine
Mount Type	Belt Clip
Belt Size	Up to 2.25"
Shell Count
Caliber or Gauge	9mm/10mm/40S&W/45ACP
Compartments	1