This dual magazine carrier holds two extra magazine that will sit on the opposite hip from your gun. The bullets face forward which helps for quick and easy reloading with a single hand. The mag carrier has two built in retention screws that can be adjusted to give a looser or tighter fit for the mag. This also allows for a variety of different mags to be used with the same mag carrier. Mag carrier are either for single or double stack mag, but not both. The carriers make a nice compliment to any of our holsters. These are made and designed by Next Holster.