my friend just picked up a brand new knight rolling block stainless and synthetic for $179 and wants to get ahold of a couple extra breech plugs since knight is out of buisness where is the best place to order them or any place for that matter none of the local gun shops have any. any help would be much appreciated thank you.

p.s. this rifle is a shooter im just not crazy about taking out the trigger mechanism to prime it but hell under 200 bucks for stainless and a green mtn barrel why not