Proof Research Impact 737R Prefits

Proof Research Impact 737R Prefit Barrels

Upgrade your precision rifle with a Proof Research carbon fiber–wrapped prefit barrel, precision-machined specifically for the Impact Precision 737R action. These prefits are designed for shooters who demand match-grade accuracy, reduced weight, and uncompromising consistency—without the wait or cost of a full custom chamber job.

Proof Research barrels feature a match-grade stainless steel core wrapped in aerospace-grade carbon fiber, delivering excellent heat dissipation, superior rigidity, and significant weight savings compared to traditional steel barrels. Each prefit is CNC-machined to exacting tolerances to ensure proper headspace and a true drop-in fit on Impact 737R actions.

Perfect for competition, duty, or high-end hunting builds, these barrels are trusted by top PRS shooters and professionals worldwide.

Features:

• Designed specifically for Impact Precision 737R actions

• Prefit barrel – no gunsmithing required

• Match-grade stainless steel core

• Carbon fiber wrap for reduced weight and improved thermal stability

• Known for exceptional accuracy and consistency

• Ideal for PRS, NRL, tactical, and hunting applications

Traditional Steel Prefit