HCA Carbon Killer Muzzleloader Barrel

Built for hunters and custom builders looking to bring HCA carbon barrel technology to their muzzleloader platforms, the HCA Carbon Killer Muzzleloader Barrel provides a purpose-built foundation for a lightweight, high-performance custom muzzleloader.

The Carbon Killer is a .45 caliber carbon-wrapped muzzleloader barrel featuring a 1:20″ twist rate and a configuration designed specifically with modern muzzleloader builds in mind. The barrel incorporates a 4″ full-steel tenon section, providing ample material for proper fitting, threading, and chamber work during the build process.

At the muzzle, the Carbon Killer maintains enough exposed steel to accommodate 3/4-24 muzzle brake threads, giving builders the flexibility to incorporate a compatible muzzle brake into the finished rifle.

The carbon-wrapped construction allows the barrel to maintain the substantial dimensions required for a serious muzzleloader build while keeping overall barrel weight under control. At its longest configuration, the Carbon Killer weighs approximately 3.85 pounds.

Specifications

• .45 caliber muzzleloader barrel
• 1:20″ twist rate
• HCA carbon-wrapped construction
• 4″ full-steel tenon
• Muzzle section allows for 3/4-24 brake threads
• Designed for custom muzzleloader builds

For shooters building a dedicated custom muzzleloader and looking to reduce unnecessary barrel weight while retaining a substantial, purpose-built contour, the HCA Carbon Killer offers a premium starting point built around Hells Canyon Armory’s carbon barrel experience.

Please allow approximately 12–16 weeks for delivery.