Experience improved precision and tighter groupings on target with the Tyrant Designs® Non-Threaded Barrel for Gen 1-5 Glock® 19, 19X, 45. Featuring pre-hardened 416R stainless steel construction, this aftermarket barrel is built to last full days at the range or the competition circuit. The 1:10" twist provides superior accuracy while deep crowing ensures each round is as consistent as the last while non-linear but symmetric fluting allows this barrel to dissipate heat consistently across the length of the barrel. Backed by a lifetime warranty from Tyrant Designs. Made in USA.