True Precision match-grade drop-in barrel for the Glock 19 in 9mm, finished in TiCN copper. Fits Glock 19, 19X, and Model 45 frames Gen 1-5 with no fitting work - a direct upgrade for accuracy without changing your muzzle profile. Machined from 416R stainless steel with proprietary broach-cut rifling - a clean, accurate bore that runs jacketed, cast, and lead ammunition safely (a known limitation on the OEM polygonal bore for shooters running reloads). Specifications Fits: Glock 19, 19X, 45 (Gen 1-5), 9mm Luger Material: 416R stainless steel Finish: TiCN copper Muzzle: non-threaded, OEM crown profile Rifling: broach-cut, 6-groove, 1:10 RH twist Chamber: SAAMI-spec, fully supported Build notes : Drop-in fit - no gunsmithing. Function-check with your carry ammo before relying on the barrel for duty or defensive use. Finish note The TiCN copper barrel finish is a decorative coating and will show wear at metal-to-metal contact points (the locking lugs and barrel hood, where the barrel contacts the slide) over time with use. This is normal and does not affect function or accuracy. DISCLAIMER: "GLOCK" is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.