Bolt-Action 284 Caliber Carbon Fiber Barrels - 284 Caliber 1-8 Twist 28" Carbon Fiber Sendero Barrel
All Proof Research barrels
Click to see full view
Proof Research
Overview
The Proof Research Bolt-Action 284 Caliber Carbon Fiber Barrel is designed specifically for .25 Creedmoor chambering, featuring a 28-inch length and a 1:8 twist rate. This twist rate is optimal for stabilizing a range of bullet weights, allowing for improved accuracy and performance at various distances. Builders often incorporate this barrel into precision long-range setups where weight savings from the carbon fiber construction are crucial without sacrificing performance.
Specifications
Bolt-Action 284 Caliber Carbon Fiber Barrels - 284 Caliber 1-8 Twist 28" Carbon Fiber Sendero Barrel
Price and stock
The Proof Research Bolt-Action 284 Caliber Carbon Fiber Barrels - 284 Caliber 1-8 Twist 28" Carbon Fiber Sendero Barrel was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $779 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
Not sure which barrel to pick?
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
Frequently Built With
Popular alongside barrels on GunPartPicker
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom
Maximize Your AR-15's Potential with Tacfire's 15" ACE M-LOK Handguard - Black Excellence - HG20-15
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Bravo Company M16 Bolt Carrier Group Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
No reviews yet. Be the first to review this product!