http://imageshack.us/photo/my-images...chplug002.jpg/
Well I did play with the original plug that came with the CVA Optima
I did buy the new plug for the BH209 powder so what the heck
I did notice the original plug was hollow after drilling into it from the center hole made at the factory.
I then added a piece of round stock and drilled a .033 hole which I used a hydraulic press for a super tight fit,I yet to try it I think it will work