Iran is one of those countries who are not happy when they are not copying weapons designed by other countries. The irony is that they have copied an Israeli weapon.
These grainy photos were taken from a video (see below).
There are a few parts that look different to the CornerShot such as the bottom of the front and the hinge. A lot of it looks the same. Compare with the original:
More Photos of the original at israeli-weapons.com.
This youtube video is very bad quality. The original, in WMV format, is here.
The chinese also developed a corner shot type weapon, the HD66, but it looks very different to the Israeli and Iranian weapon. It is really a QSZ92 pistol mounted on the end of a submachine gun.