Knight Muzzleloading 209 Primer Ignition 50 Cal Muzzleloader Conversion Kit

If you're running a traditional muzzleloader with a No. 11 or musket cap ignition system and want to switch to the reliability and consistency of 209 primers, the Knight Muzzleloading 209 Primer Ignition Conversion Kit gives you that upgrade path. This breech plug conversion kit is designed specifically for shooters who want modern primer reliability without replacing their entire rifle. The switch from percussion caps to 209 primers reduces misfires and delivers more dependable ignition in the field—whether you're hunting or at the range.

Before ordering, understand that this kit isn't caliber-universal: it requires a breech plug with a 5/8-inch outside thread diameter. Measure your rifle's current breech plug before purchasing. If your plug doesn't match that specification, this conversion won't fit, so take the time to verify the thread size on your gun. Once you've confirmed compatibility, the conversion itself transforms your cap-lock system into a modern 209 primer setup.

Knight & Hale has been a solid name in muzzleloading for years, and this kit reflects that focus on reliable ignition systems. Whether you shoot in wet conditions, high altitude, or just prefer the consistency of centerfire primers in a traditional rifle, switching to 209 ignition is a practical upgrade that many blackpowder hunters have made.

Key Features

• Converts No. 11 or musket cap systems to 209 primer ignition
• Upgrades to modern, reliable centerfire primer technology
• Improves ignition consistency for hunting and range use
• Requires breech plug with 5/8-inch outside thread diameter

Specifications

Frequently Asked Questions

Will this kit fit my muzzleloader?

Only if your breech plug has a 5/8-inch outside thread diameter. Do not order based on caliber alone—measure your breech plug first. If it doesn't match that thread size, this conversion will not work on your rifle.

What ignition system does this convert from?

This kit converts rifles currently using No. 11 or musket cap ignition systems to 209 primer ignition.

Why switch to 209 primers?

209 primers are centerfire primers that offer more reliable, consistent ignition than traditional percussion caps, especially in wet or difficult conditions. They're also easier to manage in the field.