I have been using Diamondback Tactical’s (DBT) Short Open Top M4/M16 Magazine Pouches for almost 2 years. They are sold under DBT’s Battlelab tactical nylon brand. I have used both the MOLLE version and the belt mounted versions. Both are excellent products at a very reasonable price (about $16 per pouch).
These work great on a MOLLE belt which is where I use mine most of the time. They will also work on chest rigs and plate carriers. The strength of this pouch is the speed at which it presents the magazine. It is purposely cut short to allow a full grip on the magazine which promotes speedy, fumble-free reloads.
The pouch itself is very simple. It is essentially just a an open top “box” made from 1000D Cordura nylon. The magazine is retained two ways (other than gravity). There is a shock cord retainer strap that loops over the magazine to keep it in place. The pouch is also lined with a textured rubber material that provides friction so that the mags actually stay in place pretty well without the shock cord retainer. This liner also serves as a wear resistant layer that protects the already wear resistant nylon.
I have found these to be very versatile. I use them primarily with 30 round AR mags. I have found that they fit with USGI, PMAGs, ARC, and Lancer magazines. I have also found that they work very well with my favorite AK magazines, the 20 round Hungarian Tanker Mags. In fact, these are my favorite pouches that I have ever used for these Hungarian Tanker Mags.
These pouches offer reasonable retention without the bungee retainer in place. If you turn the pouch upside down and shake it when it is holding a loaded mag, the mag will fall out readily without the retainer. However, in 2 years and countless drills of all types, I have yet to loose a mag out of one these pouches with or without the retainer. The rubber lining is sufficient to keeps the mags in place unless you are upside down.
I am currently using these as my primary mag pouches on my belt rigs. They serve that purpose very well. They offer the kind of speed that you need to really leverage the advantages of reloading from the belt. In a training situation where I am expected to bring more ammo to the line (I don’t recommend more than 2 or 3 primary mags on your belt), I simply feed these pouches from a chest rig so I can reinforce going to the belt for my reload.
These are great pouches that would work well on a belt rig or as a speed reload pouch on a plate carrier. This Regular Guy recommends them highly.
Update: I recently ordered three more of these pouches and found that the new ones seem a bit tighter which is welcome. They still work well with AK mags but seem to have a bit more grip on my AR mags.