Proof Research: 6.5 Creedmoor, Carbon Fiber, 1 - 8 Twist, 4 Groove, 24", Terminus Apollo

Proof Research : 130254
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PROOF Research carbon fiber & steel pre-fit barrels for the Terminus Apollo, Zeus and Kratos actions come chambered and threaded for an easy install. Simply torque on, double check & ensure headspace with proper gauges and head to the range! Pre-fit barrels that deliver shot for shot accuracy and performance - there is simply no better choice for the Terminus Apollo action than Proof Research's carbon fiber & steel pre-fit barrels.

Apollo / Apollo Lite / Ti: Pre-fits will fit all actions with integral recoil lug and actions supplied .250" thick recoil lug.


  • Lightweight: Up to 64% lighter than traditional steel barrels of similar contour.
  • Extreme Temperature Resistance: Improved heat dissipation for cooler and longer lasting barrels.
  • Unprecedented Durability: Wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin.


  • Action Model: Terminus Apollo
  • Barrel Length: 24”
  • Twist Rate: 1:8
  • Thread: 5/8-24
  • Contour: Sendero
  • Weight: 2.15 lb


  • All shouldered pre-fit barrels are guaranteed for headspacing.
  • Due to variance in actions Proof Research does not guarantee the timing and alignment of the barrel engraving to your stock line.
  • Barrels are specific to the action type/length and are not interchangeable.
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Carbon Fiber
24 in
Terminus Apollo