Was at the local gun shop today and I noticed that the dealer had a conversion kit their to convert knight's over to full plastic Jackets for 209's (the red ones) The whole kit cost 65 bucks. My question for you guys that know your stuff is I have a knight bighorn that takes the 209's but not in a jacket or disc they go straight in the breech plug, which I have problems with sometimes, mainly removal of spent ones. I noticed that in this kit the inline bolt looks the same as mine, even measured it, looks the same the only thing I can tell is the breech plug is different. Can I buy just the breech plug and it work with my hammer/bolt? Thanks! Oh, in case your wandering the dealer is on vaction hunting and the guy he has working the counter only knows how to operate the cash box, so he could not help.