The Zaffiri Precision match-grade barrel for Glock 43 is a drop-in 3.3" TiN gold 416R stainless replacement - no gunsmithing, no fitting. The polished chamber and conventional rifling handle lead, plated, and jacketed 9mm ammunition equally well, giving a tighter group than the factory Glock 43 barrel at defensive-shooting distances. Fit and Compatibility: Glock 43 (subcompact 9mm) 3.3" flush-and-crown profile - sits flush with the end of the slide with an inward crown shape Uses factory or aftermarket recoil spring assembly Finish and machining: Titanium Nitride (TiN) gold PVD over 416R stainless - corrosion-resistant, high-contrast against a dark slide. Precision-manufactured in the USA to match-grade tolerances. Specs: Material: 416R stainless steel Finish: TiN gold PVD Length: 3.3" (flush with slide end) Chamber: polished, conventional rifling Ammunition: 9mm Luger - lead, plated, or jacketed Country of origin: USA TiN wear note: Titanium nitride is a hardness-improving surface coating - expect light cosmetic wear at the muzzle and locking-lug contact points after 1,000-2,000 rounds. This does not affect accuracy or function. Break-in and care: No break-in is required for reliable function, though the first 50-100 rounds will settle the barrel-to-slide fit and produce peak accuracy. Clean copper and lead fouling from the polished chamber after each range session; the TiN finish resists wear but responds well to a light coat of gun oil after cleaning. 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.