TRUE Precision 9mm Threaded Barrel For Glock 19 The TRUE Precision 9mm threaded barrel for Glock 19 comes in a variety of high-quality finishes that not only improve reliability but improve the look of your carry gun. This model comes in the standard satin finished stainless steel. It also features 1/2x28 threads for attaching compensators for carry or a suppressor for the range. It includes a thread protector with an integrated O-ring to prevent it from backing off under fire. If you are looking for an upgrade to your defensive carry 9mm G19, check out the TRUE Precision line of barrels. Satin stainless steel Chambered in 9mm for G19 Drop-in fit Threaded 1/2x28 with included thread protector 1:10 LH rifling SAAMI Spec chamber Fully radiused and chamfered This barrel is manufactured in the United States from US sourced materials. It is machined from 416r stainless steel with broach cut 6-groove 1:10 LH rifling that improves accuracy potential while also increasing reliability with all types of ammunition including cast lead. The chamber is fully SAAMI spec and the outer dimensions feature precision cut chamfers and radius cuts for an easy and tight drop-in fit. TRUE Precision makes high-quality drop in barrels for all the popular firearms from Glock, Glock, and many more in a variety of calibers and finishes. Based out of Georgia, TRUE Precision is dedicated to using US sourced materials to build barrels and other components to improve the quality of your defensive carry firearm.