You may carry a modern high-capacity semi-automatic pistol but it's still very important that you have the ability to quickly reload a full magazine. There is also the possibility that a magazine can fail and that is when having a backup handy is a necessity!
The Blackhawk! Double Magazine Holster Case Double Stack in matte finish has a built-in tension spring securely holds magazines of various sizes. This magazine holster includes both belt loops and a belt clip to secure your holster to your body. The belt clip is adjustable for belts of different widths and fits either 9mm or 40 caliber magazines. The holster is curved to waistline for slimmer profile.
Note: "CDC" means "close quarters combat"
Don't be un-prepared, always take extra ammo!