A Pardus CS Semi Automatic Shotgun is a shotgun designed to fire a single shot with each trigger pull, automatically ejecting the spent shell and chambering a new round from the magazine, making it a semi-automatic firearm which is produced currently in 12 and 20 gauges only and carries classical gas piston system with front action spring over the magazine tube. Being used all opportunities of today's technology, this shotgun provides more than the expectations compared to relevant competitors in the market.