A feedramp polish job -- something you can do yourself -- will most likely solve your problem.
A great place for information on all KT firearms is
www.ktrange.com I know that some of KTs gunsmiths post there and will be willing to help you out.
I have every model made by KT. Although some have required a little TLC (also known on the KT boards as F&B), all now currently run flawlessly.
As a last resort, sending the gun to Cocoa for factory attention is an option. Their warranty and customer service is excellent.