knight vision parts

[droopy196988]

I recently bought a knight vision 50 cal. It tested ok with a couple of caps before I bought it. When I took it to the range I found out that it doesn't fire every time. When I fire it without a cap the trigger and hammer work fine. When I put a 209 primer in it feels like the hammer never moves at times. Other times it fires. After doing some research it looks like there is an extractor missing. Does anyone know where I can get parts or a different primer cap setup?

[GMB54-120]

Knight sells bare 209 primer and red jacket FPJ breach plugs. Im not sure which you already own.

[droopy196988]

I have just a bare breach plug.