
Availability: In Stock
Current Stock: Out of stock
A Fierce Firearms .284 Cal 22" barrel with 1:8.5 twist rate and 5/8"-24 TPI threading is a premium replacement or build component for shooters who want to precision-engineer their rifle platform. Whether you're assembling a custom long-range hunting rifle or upgrading an existing Fierce action, this barrel delivers the foundation for accuracy and reliability—and the thread pitch ensures compatibility with a wide range of suppressors and muzzle devices.
The .284 caliber occupies a unique sweet spot in the rifle world: it offers velocity and energy delivery superior to the .308 Winchester while maintaining excellent powder efficiency and moderate recoil. The 22" length balances velocity potential with handling and barrel life. The 1:8.5 twist rate is a proven stabilizer for the caliber across a wide spectrum of bullet weights, from lighter varmint projectiles through heavy-for-caliber match and hunting loads—giving you flexibility on the range and in the field.
The 5/8"-24 TPI thread pitch is the modern standard for rifle suppressors and tactical accessories, making it straightforward to add sound suppression, a muzzle brake, or other attachments without hunting for adapters. Fierce Firearms barrels are manufactured to exacting standards and integrate seamlessly with Fierce actions and compatible modern rifle platforms.
This is a raw barrel component—installation requires appropriate tools, gunsmithing knowledge, and headspace verification. If you're building a custom rifle or replacing a worn barrel on an existing Fierce action, this is a direct, quality path to a rifle tailored to your shooting discipline and load development.
| Caliber | .284 Cal |
| Barrel Length | 22" |
| Twist Rate | 1:8.5 |
| Muzzle Thread | 5/8"-24 TPI |
| Manufacturer | Fierce Firearms |
This barrel is designed for Fierce Firearms actions and compatible modern rifle platforms. Verify your action's threading and chamber specifications before purchase. Professional installation and headspace verification are strongly recommended.
A 1:8.5 twist stabilizes a broad range of .284 caliber bullets, from lighter target and varmint rounds through heavier match-grade and hunting projectiles. It's one of the most versatile twists for the cartridge, giving you load-development flexibility.
Yes. The 5/8"-24 TPI is the standard thread pitch for modern rifle suppressors and muzzle devices. Suppressors, brakes, and flash hiders designed for this pitch will screw on directly.
Installation requires proper tools, fixture work, and headspace verification to ensure safe, accurate function. Professional gunsmithing is the right choice for barrel replacement.

SKU: 115685040 • Width: 4in • Height: 4in • Depth: 29.1in • Weight: 3.3oz





Availability: In Stock
Current Stock: Out of stock
A Fierce Firearms .284 Cal 22" barrel with 1:8.5 twist rate and 5/8"-24 TPI threading is a premium replacement or build component for shooters who want to precision-engineer their rifle platform. Whether you're assembling a custom long-range hunting rifle or upgrading an existing Fierce action, this barrel delivers the foundation for accuracy and reliability—and the thread pitch ensures compatibility with a wide range of suppressors and muzzle devices.
The .284 caliber occupies a unique sweet spot in the rifle world: it offers velocity and energy delivery superior to the .308 Winchester while maintaining excellent powder efficiency and moderate recoil. The 22" length balances velocity potential with handling and barrel life. The 1:8.5 twist rate is a proven stabilizer for the caliber across a wide spectrum of bullet weights, from lighter varmint projectiles through heavy-for-caliber match and hunting loads—giving you flexibility on the range and in the field.
The 5/8"-24 TPI thread pitch is the modern standard for rifle suppressors and tactical accessories, making it straightforward to add sound suppression, a muzzle brake, or other attachments without hunting for adapters. Fierce Firearms barrels are manufactured to exacting standards and integrate seamlessly with Fierce actions and compatible modern rifle platforms.
This is a raw barrel component—installation requires appropriate tools, gunsmithing knowledge, and headspace verification. If you're building a custom rifle or replacing a worn barrel on an existing Fierce action, this is a direct, quality path to a rifle tailored to your shooting discipline and load development.
| Caliber | .284 Cal |
| Barrel Length | 22" |
| Twist Rate | 1:8.5 |
| Muzzle Thread | 5/8"-24 TPI |
| Manufacturer | Fierce Firearms |
This barrel is designed for Fierce Firearms actions and compatible modern rifle platforms. Verify your action's threading and chamber specifications before purchase. Professional installation and headspace verification are strongly recommended.
A 1:8.5 twist stabilizes a broad range of .284 caliber bullets, from lighter target and varmint rounds through heavier match-grade and hunting projectiles. It's one of the most versatile twists for the cartridge, giving you load-development flexibility.
Yes. The 5/8"-24 TPI is the standard thread pitch for modern rifle suppressors and muzzle devices. Suppressors, brakes, and flash hiders designed for this pitch will screw on directly.
Installation requires proper tools, fixture work, and headspace verification to ensure safe, accurate function. Professional gunsmithing is the right choice for barrel replacement.
SKU: 115685040 • Width: 4in • Height: 4in • Depth: 29.1in • Weight: 3.3oz
