Faxon Firearms Duty Series 9mm Threaded Barrel — 4.5", 1:10 Twist, Fits Glock® 19 Gen 2–5 / 19X / 45, 1/2x28 Threads, Nitride, Black — GA910N19NGQ-T (GA910N19NGQT) | UPC: 816341022171
Upgrade your Glock’s performance with the Faxon Firearms Duty Series 9mm Threaded Barrel—purpose-built for hard use, smooth reliability, and everyday carry confidence. Precision-machined to drop into Glock 19 Gen 2–5, and also compatible with Glock 19X and Glock 45, this 4.5-inch barrel extends beyond the slide to accommodate 1/2x28 muzzle devices and suppressor mounts. A deep black Nitride finish resists wear and corrosion, while the 1:10 twist stabilizes a wide range of popular 9mm loads for consistent accuracy on the range, in matches, or on duty.
Why Choose the Duty Series from Faxon?
Faxon designed the Duty Series to be a work-ready barrel: reliable with factory ammunition, consistent under high round counts, and finished to handle the rigors of training, carry, and inclement weather. You get plug-and-play fitment for Gen 2–5 G19-pattern pistols (plus 19X/45), modern threads for common muzzle devices, and a protective surface treatment that keeps your barrel running and looking sharp.
Key Features & Advantages
Direct Fit for Popular Glocks: Drop-in compatibility with Glock 19 Gen 2–5, G19X, and G45—no gunsmithing required for most pistols.
Threaded 1/2x28 Muzzle: Industry-standard threads let you add compensators, muzzle brakes, and suppressor adapters (where legal).
Extended 4.5" Length: Slightly longer than standard G19 to support threading and easy device installation while maintaining compact handling.
1:10 Twist Rate: Optimized to stabilize common 9mm bullet weights—from light training rounds to defensive loads—for reliable, repeatable accuracy.
Black Nitride Finish: Durable, low-friction surface improves corrosion resistance, eases cleaning, and stands up to daily carry.
Duty-Ready Tolerances: Manufactured to tight, repeatable specs for smooth cycling and consistent lockup across Gen 2–5 frames.
Sleek, Low-Glare Aesthetics: All-business look that complements OEM slides and aftermarket builds.
Note: Muzzle device and thread protector may vary by package. Always confirm included contents.
Compatibility
Pistols: Glock® 19 Gen 2–5, 19X, 45 (9mm)
Caliber: 9mm Luger (9x19)
Thread Pitch: 1/2x28 (standard 9mm)
Length: 4.5 inches (threaded, extended)
Finish/Color: Black Nitride
Not compatible with Glock 19 Gen 1 or slimline models (G43/43X/48).
Performance You Can Feel
Better Controllability: Pair with a compensator to reduce muzzle rise and speed up split times.
Consistent Accuracy: 1:10 twist and modern machining yield predictable groups across training and duty ammo.
Hard-Use Durability: Nitride-treated surfaces shrug off sweat, solvents, and weather—perfect for EDC and high-round training.
Suppressor-Ready: Standard threads accept common piston/QD mounts (where legal); run with a booster as required.
Installation & Zeroing Tips
Unload & Clear your pistol.
Field-strip and swap barrels—this is a drop-in.
Install a thread protector or your chosen muzzle device (use proper shims/torque and high-temp threadlocker as directed by the device manufacturer).
Function check and confirm POI/POA with your preferred ammo; re-verify after the first range session.
For suppressed use, follow your suppressor manufacturer’s guidelines (e.g., Nielsen device/booster for short-recoil pistols).
Technical Specifications (Quick View)
Series: Faxon Duty Series
Caliber: 9mm (9x19)
Length: 4.5" (extended, threaded)
Twist: 1:10
Threads: 1/2x28
Finish: Nitride, Black
Fitment: Glock® 19 Gen 2–5 / 19X / 45
SKU/Part #: GA910N19NGQ-T / GA910N19NGQT
UPC: 816341022171
Ideal Use Cases
Everyday Carry (EDC): Durable finish + drop-in reliability for trusted daily use.
Training & Classes: High round-count ready; pair with a comp for speed.
Home Defense: Consistent accuracy with common defensive loads.
Suppressor/Comp Builds: Standard thread pitch keeps configuration options wide open.
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The Bottom Line
The Faxon Firearms Duty Series 9mm Threaded Barrel is the smart, reliable upgrade for Glock 19-pattern shooters who want duty-grade durability, suppressor/comp compatibility, and consistent accuracy—without the hassle of fitting or tuning. From carry to classes, this 4.5" Nitride barrel is built to work as hard as you do.
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