The Rosco Manufacturing Bloodline Glock 17 barrel is a drop-in, match-grade option designed to fit Glock 17 pistols from Gen 1 through Gen 4, delivering enhanced accuracy and performance while preserving the reliability you expect from a factory-built platform. Crafted from 416R stainless steel and finished with a Melonite (nitride) coating in a sleek black appearance, this 4.49" barrel features a 1:10 twist rate to optimize performance with SAAMI-approved, factory-new 9mm ammunition. Roscos Bloodline line is honed, broached, and meticulously polished to ensure a precise fit and smooth operation, making installation straightforward for a user-friendly swap with the guidance of a local gunsmith if questions arise. This barrel combines durability and precision engineering to improve consistency, velocity potential, and shot-to-shot accuracy, whether youre enhancing a service pistol for daily carry, competition, or range days. With its robust construction and proven compatibility across Glock generations, the Bloodline Glock 17 barrel helps you maximize the potential of your existing Glock platform while maintaining reliable function and long-term durability.