PROOF Research 153253 22 CM E-X Tra Barrel, 18-Inch, 1:8 Twist, 5/8-24 Thread

The PROOF Research 153253 E-X Tra barrel is designed for rifle builders and shooters seeking a precision-focused 22 Creedmoor configuration. Chambered for 22 CM cartridges, this barrel combines a practical hunting and match-rifle format with the accuracy-oriented engineering associated with PROOF Research. Its 18-inch configuration offers a compact platform for builds where maneuverability and efficient handling are important.
The barrel features a 1:8 twist rate to support a broad range of modern 22-caliber bullet profiles commonly selected for the 22 Creedmoor cartridge. A 5/8-24 muzzle thread provides compatibility with a wide selection of properly matched muzzle devices, including brakes, compensators, and suppressors where legally permitted. The threaded muzzle gives builders flexibility when configuring a rifle for field use, range shooting, or competition applications.
The E-X Tra profile is intended for custom rifle projects and replacement-barrel applications where proper chambering, fitment, and installation are essential. Professional gunsmith installation is recommended to verify receiver compatibility, headspace, bolt-face requirements, muzzle-device alignment, and final safety checks. Use this PROOF Research barrel with components selected specifically for 22 Creedmoor builds, and follow all manufacturer, firearm, and ammunition safety guidelines. Part number 153253 provides a straightforward reference when identifying the correct barrel for your project.

Features:

• Type: E-X Tra barrel profile for custom rifle builds and replacement applications

• Cartridge: 22 Creedmoor for modern precision rifle configurations

• Barrel Length: 18 inches for a compact and maneuverable setup

• Twist Rate: 1:8 for supporting a wide range of 22-caliber bullet weights

• Muzzle Thread: 5/8-24 for compatible brakes, compensators, and suppressors

• Brand: PROOF Research

• Part Number: 153253