The magazine is firmly held inside by the rubber band with a strap, which is useful to pull the rubber band aside and take off the magazine almost silently.
Besides AK this pouch is also compatible with the RPK mags for 45 bullets as well as for the M4 / M16 series but with a little improvement (putting on the bottom something) so that the magazines do not go too deep (see the dimensions of the pouch below in Features).
PALS / MOLLE cells are stitched on the outside of the pouch for scaling up by other pouches.
MOLLE straps on the back side make possible to mount this pouch to any MOLLE compatible equipment.