BLACKHAWK, Durable Double Stack Single Mag Case, Matte Finish, Suitable for 9mm/.40 cal, Color: Black

I’m using this for my S&W 40 FDE double stacked magazine and it fits perfectly. The mag fits snugly with no worries about weight falling out. Good product and as described.

I have several of these and they work great

I have been using this the past 7 years for off duty carrying. You can adjust it to fit snug on your belt, but I find it better to have it sit snug in my pocket. Keeps the mag separate from the other things in your pocket, and provides retention. Very durable, it’s been through over 7 years of use so far and still works and looks like new. Well worth the money.

I ordered 3 of these mag cases and promptly received them. Unfortunately two of them are different than the third. Two of them have different packaging and the retention springs are so weak they don't hold the magazines inside when inverted. The third one which looks identical holds double stack magazines very well. I called Blackhawk to find out if the weak springs can be bent to make for a snug fit. A very friendly representative told me they shouldn't require the springs be bent. He said he would send replacements to me which I appreciate. I will return the weak springed ones to Blackhawk. The unusual thing about the two "faulty" cases is a white sticker over a portion of the packaging which makes the model number and other information unreadable.As far as the serviceable mag case, it is a very good product. It is sturdy and well made. It holds the magazine very well even when inverted. This case would be very useful for carrying on the range or in the field. It is fairly thick so would not be ideal for concealed carry. The belt "loop" is molded plastic. It is very stiff but open at the bottom, so with some effort it can be placed or removed from a belt without removing it. The loop will accommodate up to a 2" wide belt.

This particular style of Blackhawk magazine pouch is very secure for both double and single stack magazines with no tension adjustment necessary. A piece of spring steel inside keeps the magazine in place very securely yet it's surprisingly easy to insert and withdraw. These are supposed to be easily removable from the belt without removing it but the polymer is quite stiff. I find it easier to just remove the belt. With time they will probably break in fine and be easier to manipulate. Very happy with this purchase. If you're having trouble find a pouch to fit magazines for your handgun, try these.

Now I haven't used mine just yet, I did use a friend's that was identical, hence why i bought my own. I am a Parole Officer and when we qualify we have to draw from the holster and reload from backup mag holsters. I used this for about five days straight and never had an issues with it. It works great! The plastic holds up great and holds the mags nice and tight. It's quick and easy to draw from and it's small and doesn't take up too much room on your belt. I look forward to practicing drawing from this holster more often!

The good: Holds a Glock 9 or 40 mag tightly enough that it won't fall out or rattle, but mag comes out easily when grabbed. Stays on a 1.5" belt very well. The material has a nice feel and the unit is very sturdy. Keeps magazine in a position that makes it easy to grab.The bad: Way too bulky for good concealment. The unit is just too thick and makes the magazine stick far out from the wearer's body. This is mostly because of the belt attachment mechanism, which is as bulky as a spring-loaded clip-on/clip-off type, but isn't spring loaded so you have to force it open with your fingers to clip it on or off. It's the worst of both worlds attachment-wise.Bottom line: For concealed carry this is a dud. For convenience at the range or for open carry it's pretty good.

I had a need for a simple, inexpensive magazine pouch I could wear on my belt for a pistol course. This magazine pouch uses a spring to leverage internal tension to hold varying double stack magazines. It works with all my modern double stack 9/40 magazines including Glock. I am not sure if it will fit the larger Glock 21/HK USP and similar double stack 45ACP magazines. The tension system works well and accommodates many magazine types while maintaining good magazine retention. The clip worked well on my belt and did not move or shift as I had expected. It will also fit a MOLLE/PALs set up. The clip itself is removable and I am guessing interchangeable with other attachment options.