I'm guessing when you say regular, that you mean it has two flat sides that uses a special wrench that comes with the gun. My pursuit XLT came with a hex style breech plug. I found a regular breech plug on sale, so I bought it for a spare and it was exactly the same except for the head. I looked at Traditions web site and the 209 hex style breech plug is for pursuit and yukon models, so I would say YES, it should work.