The Rosco Manufacturing PB-139-SPR-223W-7-M Purebred 223 Wylde 13.90" Nickel Boron Stainless Steel Barrel is built for shooters who want a compact, precision-oriented AR-15 setup. This 13.9" SPR-profile barrel uses a .223 Wylde chamber to safely run both .223 Remington and 5.56 NATO ammunition, while the mid-length gas system and 1:7 twist rate support smooth cycling and stability with a wide range of bullet weights. Its 416R stainless steel construction with an 80-grit bead-blasted finish and nickel boron barrel extension delivers consistent accuracy and corrosion resistance.

This barrel is well suited for building a refined AR-15 for range use, training, or practical competition where reliability and precision matter. The SPR contour adds rigidity for repeatable cold-bore shots, and the 1/2x28 threaded muzzle makes it easy to add your preferred muzzle device. Rosco Manufacturing is known for carefully engineered barrels that balance durability, accuracy, and value for demanding shooters.

Key Features:

• Manufacturer: Rosco Manufacturing
• Model: Purebred SPR
• Caliber: .223 Wylde
• Barrel Length: 13.9"
• Twist Rate: 1:7
• Gas System Length: Mid-Length
• Barrel Profile: SPR
• Gas Block Journal: .750"
• Muzzle Thread: 1/2x28
• Barrel Extension Finish: Nickel Boron
• Barrel Finish: 80-Grit Bead Blast
• Weight: 30 oz