Rosco Manufacturing Purebred 20" SPR .223 Wylde Barrel The Rosco Manufacturing Purebred 20" SPR .223 Wylde Barrel is engineered to deliver peak extended-range precision for the serious carbine shooter. Built from 416R stainless steel and finished with an 80 Grit Bead Blast, this barrel combines rugged durability with refined accuracy at distance. Whether you are looking to build a longer version of the iconic MK12 platform or re-barrel your 20" carbine for DCM and National Match competition, the Purebred delivers consistent, optimal extended-range performance every time. With a rifle-length gas system, 1:7 twist rate, 1/2x28 muzzle threading, Nickel Boron barrel extension, and a precise Step Crown, every detail is optimized for competitive and precision shooting applications. Compatible with AR-15 platforms and Ops Inc. suppressor systems, this barrel is a true upgrade for any demanding shooter. Product Highlights 20" Rifle-Length Gas System: Maximizes velocity and cycling reliability for extended-range AR-15 builds, ideal for DCM and National Match competition. 416R Stainless Steel Construction: Premium barrel steel provides exceptional durability, corrosion resistance, and the accuracy potential expected from a match-grade barrel. SPR Profile with 1:7 Twist Rate: Designed to stabilize a wide range of .223 Wylde projectiles, including heavier match bullets for long-range accuracy. Step Crown and Nickel Boron Barrel Extension: Precision crown protects rifling for consistent accuracy, while the Nickel Boron extension offers superior wear resistance and smooth function. Ops Inc. Compatible and 1/2x28 Muzzle Threading: Ready for a wide range of muzzle devices and suppressor systems right out of the box. Specs Brand: Rosco Manufacturing Caliber: .223 Wylde Barrel Length: 20" Barrel Profile: SPR Barrel Material: 416R Stainless Steel Twist Rate: 1:7 Muzzle Thread: 1/2 x 28 Gas Block Diameter: 0.750" Gas System Length: Rifle-Length Barrel Crown: Step Crown Barrel Finish: 80 Grit Bead Blast Barrel Extension Finish: Nickel Boron Weight: 42 oz Compatible Platforms: AR-15, Ops Inc. MPN: PB-20-SPR-223W-7-R UPC: 181969500319 Brand Name: Rosco Manufacturing Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>