Truthfully.... They are garbage shotguns. Get rid of it as quick as u can. I had a 18" "Competition" model once. I put 200 shotshells thru it trying to make it work. Then the optic rail sheared off the top. I promptly shipped it back to Tactical Imports for a refund, but am still out of pocket for return shipping and the 200 shotshells. They are a poorly designed and produced gun in most regards.
On a slightly more helpful note, i think most FTF are caused by the poorly designed mags. Play around with bending the feed lips. U may have to dremel parts of the feed ramp and chamber of the shotgun as well. As far as FTE goes.... IMO this is a major weakness for most Turkish shotguns. The extractor and ejector components just arnt aggressive enough. U have to pump the gun aggressively to get the hulls to clear the ejection port reliably.