Rosco Manufacturing

This Glock Bloodline barrel is designed to fit Glock 17 pistols, generations 1 through 4. Although this is an easy-to-do, user-friendly swap, they still recommend consulting a local gunsmith if you have any questions about installation. This barrel is rated for use with SAAMI-approved, factory-new ammunition. The Rosco Manufacturing line of barrels for GLOCK is a drop-in, match-grade option that enhances the accuracy and performance of any stock Glock pistol. All Bloodline Glock barrels are made from 416R stainless steel, broached, honed, polished, and then melonited. Features : - "4.49" Over All Length" - 416R Stainless Steel, Melonite Finish, Nitride Black - 1:10 Twist - Fits Glock 17, Gen 1 - 4