A National Match grade threaded barrel for the Glock 17L. Made from gun barrel certified 4140 steel and hardened to 40-44RC for superior strength and longevity. All of our barrels are machined to the highest of standards, conventionally rifled to shoot lead and jacketed bullets, and chambered for full case support. Manufactured to ensure consistent bore and groove dimensions throughout the length of the barrel. Chambered with custom reamers designed in house to balance accuracy and reliability
