True Precision Threaded Barrel for Glock 19 – 9mm 4.50in Black Nitride

The True Precision threaded barrel is a machined drop-in replacement designed for Glock 19 pistols. Built from 416R stainless billet and finished in black nitride, it features broach-cut 6-groove rifling and a 1:10 twist rate. The barrel accepts 1/2×28 muzzle devices and ships with a thread protector, and the feed ramp geometry is widened for improved reliable feeding of defensive-style ammunition. This barrel is made in the U.S.A. and is offered to fit Glock 19 Gen 1–5 frames.

Key Specifications

• The barrel is chambered for 9mm Luger.
• The overall barrel length is 4.50 inches as indicated in the product name.
• The thread pattern at the muzzle is 1/2×28.
• The barrel is machined from 416R stainless steel billet.
• The finish is black nitride.
• The rifling is a proprietary broach-cut 6-groove design.
• The twist rate is 1:10.
• The fitment is a drop-in replacement for Glock 19 frames (Gen 1–5).
• The muzzle features an 11-degree target crown.
• The barrel ships with a thread protector.

Precision-machined and purpose-built, this True Precision barrel provides a direct upgrade path for Glock 19 owners seeking a threaded, nitride-finished replacement. With broach-cut rifling, an improved feed ramp, and standard 1/2×28 threads, it is suitable for users who require a robust, drop-in threaded barrel for use with muzzle devices or suppressors and who value consistent manufacturing and materials traceable to U.S. production.