Using the wrong breech plug may cause the breech plug to blow out the back of the muzzleloader.
When in storage or in use, the breech plug must always have high-temperature synthetic grease, such as Knight’s® Breech Plug Grease™, applied to the threads. This will help prevent the breech plug from becoming stuck in the receiver. Apply plenty of grease to all of the breech plug threads.
We have redesigned some of our breech plugs to better accommodate today's modern black powders. The fixed vent breech plug provides 40% longer life and drastically less blowback. The vent liner is fixed and non-removable.
Knight Rifles, American Made muzzleloaders.