State TV showed video of the drone flying. It said Jafari has ordered mass production of the unmanned plane.
"This smart technology (drone) can do the job of thousands of soldiers, military posts and border guards ... and protect the security of the borders," the website quoted him as saying.
Jafari also said Guard experts have finished reverse-engineering a top secret CIA RQ-170 Sentinel drone that Iran captured intact in December 2011. Iran has also claimed to have captured at least three American ScanEagle drone aircraft that violated the Iranian airspace.
Jafari said an Iranian copy of the RQ-170 Sentinel drone will be built soon.
"In the near future, you will hear good news on the building of an Iranian replica of the RQ-170," he said.
A senior Revolutionary Guard commander, Gen. Amir Ali Hajizadeh, said the Shahed-129 was capable of monitoring for up to 200 kilometers.
Hajizadeh, who heads the Guard's aerospace division, said the attacking drone has also civilian uses such as taking aerial photos for agricultural and environmental purposes.