The Proof Research 106426 Bolt 284 16.5 8TW carbon fiber pre-fit barrel delivers a compact, precision-focused option for shooters who want match-grade performance without the weight of a traditional steel barrel. Built from a 416R stainless steel blank and wrapped in aerospace-grade carbon fiber with a proprietary resin matrix, this barrel is engineered to maintain accuracy while shedding ounces from your rifle.

Chambered in 284 Winchester with a 16.5 inch length and 1:8 twist rate, this pre-fit barrel is tailored for stabilizing modern high-BC 7mm projectiles, making it well suited for extended-range hunting and practical field shooting. Its small-shank, bolt-action barrel nut pattern allows for user installation with proper tools and gauges, offering a straightforward path to upgrading a lightweight mountain rifle or compact precision build. Proof Research’s attention to detail and hand-lapped bores underscore their reputation for consistent, high-end barrel craftsmanship.

Key Features:

• Manufacturer: Proof Research
• Model: 106426 Bolt 284 16.5 8TW
• Caliber: 284 Winchester
• Barrel Length: 16.5 inches
• Twist Rate: 1:8
• Barrel Type: Carbon fiber wrapped pre-fit
• Liner Material: 416R stainless steel, match-grade
• Contour: Straight taper
• Fitment: Bolt-action, small-shank barrel nut pattern