Proof Research PR15 .223 Wylde 14.5in Carbon Fiber AR Barrel

The Proof Research PR15 .223 Wylde 14.5in Carbon Fiber AR Barrel (brand part no. 152065) is a PR15-series AR-platform barrel chambered in .223 Wylde and built from carbon fiber, rifled with Proof’s PXT geometry to reduce engraving force and throat erosion for longer barrel life. It ships fully chambered and ready to install onto a mid-length AR-15 gas system.

Key Specifications

• Chambered in .223 Wylde
• Barrel length of 14.5 inches
• Rifling twist rate of 1-in-7
• Built for a Mid-length AR-15 gas system
• Gas block journal diameter of .750-inch
• Gas port diameter of .082-inch
• Muzzle threaded 5/8-24
• Finished weight of approximately 1 lb 9 oz
• Constructed from carbon fiber, with Proof’s PXT rifling geometry

Frequently Asked Questions

What does PXT rifling do? Proof’s PXT (Proof Exponential Twist) geometry reduces rifling lead angle and smooths bullet engagement, cutting engraving force and throat erosion for longer barrel life.

Is this barrel ready to install? Yes, it arrives fully chambered and ready to install onto a compatible AR-15 upper.

Is this barrel itself an NFA item? No. This is a bare barrel under the 16-inch federal rifle minimum with no receiver included, so it is not itself a regulated Short-Barreled Rifle. Federal SBR rules only apply once it is assembled onto a complete, shouldered rifle lower without a prior approved ATF Form 1 — confirm your build configuration before assembly.

Buy the Proof Research PR15 .223 Wylde 14.5in Carbon Fiber AR Barrel

Order the Proof Research PR15 .223 Wylde 14.5in Carbon Fiber AR Barrel from our catalog, or browse more AR15 barrels at Schaefer Defense. Ships fast from our Lubbock, Texas gun shop.