The Full Plastic Jacket 209 Muzzleloader Ignition System completely seals the primer for instant ignition in the foulest conditions. Absolute confidence is a feeling only the Knight® shooter knows. We invented dependable DISC™ ignition in 1997—black powder shooters called it “the best ignition system on the most innovative muzzleloader of our time.” But we didn’t wait for the competition to catch up, so our DISC™ ignition evolved into the Full Plastic Jacket 209 Muzzleloader Ignition System, a system so well thought out, so well constructed it seals out absolutely any weather you shoot in. Testing proves it.