Product Description The Rosco Manufacturing Bloodline Barrel is a precision-engineered, drop-in replacement barrel designed specifically for Glock 17 pistols (Generations 1 through 4). Built from 416R stainless steel and finished with a Melonite Nitride Black coating, this match-grade barrel is broached, honed, and polished to deliver enhanced accuracy and consistent performance over any stock Glock barrel. The threaded 1/2x28 muzzle makes it fully compatible with suppressors and a wide range of muzzle devices, offering shooters exceptional versatility. Installation is user-friendly for most enthusiasts, though consulting a local gunsmith is always recommended if questions arise. This barrel is rated for use with SAAMI-approved, factory-new ammunition. Product Highlights Drop-in, match-grade fit engineered for Glock 17 Gen 1-4 for an immediate accuracy and performance upgrade Manufactured from 416R stainless steel, then broached, honed, polished, and Melonite-finished for lasting durability Threaded 1/2x28 muzzle provides compatibility with suppressors and popular muzzle devices 1:10 twist rate optimized for 9mm projectile stabilization and consistent downrange performance Nitride Black finish delivers superior corrosion resistance and a sleek, tactical look Specs Brand: Rosco Manufacturing Model: Bloodline Caliber: 9MM Overall Length: 5" Thread Pitch: 1/2x28 Twist Rate: 1:10 Material: 416R Stainless Steel Finish: Melonite, Nitride Black Compatibility: Glock 17, Gen 1-4 MPN: BL-G17-9MM-M-TB UPC: 850039693007 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.