Update your G19's look and enhance its accuracy with the Zaffiri Precision GLOCK G19 Threaded Barrel. It is specifically made to be compatible with your GLOCK 19, Gen 1 through 5. This drop-in, match-grade barrel from Zaffiri Precision comes equipped with a 1-in-10" rate of twist for downrange accuracy, and its polished feed ramp offers easier feeding. The chamber and bore perform well with lead, plated, and jacketed bullets. This finished and ready-to-use barrel is made of stress relieved and heat-treated 416R stainless steel. Target crown and oversized lock up area. Displays a large ZP logo on portside of lockup. The threaded (1/2" x 28") muzzle comes with a thread protector. Length: 4.6". Drop-in, match-grade barrel Compatible with GLOCK 19, Gen 1 through 5 1-in-10" rate of twist adds downrange accuracy Performs well with lead, plated, and jacketed bullets Polished feed ramp for easier feeding Heat-treated 416R stainless steel Threaded muzzle with thread protector