Proof Research Prefit Barrel Q Fix 308 Win 18" – Carbon Fiber Match-Grade Barrel

The Proof Research Prefit Barrel for the Q Fix chambered in 308 Winchester with an 18-inch profile delivers match-grade accuracy in a lightweight carbon fiber construction. Designed as a drop-in replacement for Q Fix bolt-action rifles, this barrel combines Proof's aerospace-grade carbon fiber wrap with a match-grade stainless steel core for exceptional rigidity, heat dissipation, and shot-to-shot consistency. The 18-inch length balances velocity retention with maneuverability for tactical applications, hunting, and precision rifle work.

This prefit barrel requires no gunsmithing for installation on Q Fix actions and features a precision chamber cut to SAAMI specifications. The carbon fiber wrap significantly reduces weight compared to traditional steel barrels while maintaining or improving accuracy and barrel life. Proof Research manufactures these barrels using their proprietary layup process with continuous fiber wrapping for maximum strength-to-weight performance.

• Type: Prefit barrel assembly
• Compatible Firearms: Q Fix bolt-action rifles
• Chambering: 308 Winchester
• Length: 18 inches
• Construction: Match-grade stainless steel core with carbon fiber wrap
• Finish: Carbon fiber exterior
• Installation: Drop-in prefit, no gunsmith required