Just two weeks after Saudi Arabia’s biggest-ever military drill, Iran unveiled an impressive range of new weapons as part of a special, private arms expo.

The expo had just one main guest—Iranian supreme leader Ayatollah Khamenei. The highest-ranking officers in Iranian armed forces were present to explain to their leader the capabilities of new sensors, missiles and unmanned vehicles.

The exhibition’s star was a full-size copy of America’s RQ-170 drone, one of which crashed on the Afghanistan-Iran border in late 2011, ending up in Iranian hands.

Also present was a new wheeled launch vehicle for old, Soviet-designed SA-6 air-defense missiles, complete with enhanced electronics. SA-6 launchers traditionally are tracked vehicles. The new system is similar to India’s Akash project.

Next to the new SA-6 launcher were two unnamed new sensor systems, each with one main tracking radar with a circular dish, sharing the same geometry as the original Straight Flush radar associated with the SA-6.