FAXON DUTY SERIES THREADED BARREL FOR G19 GEN 2-5 9MM
Faxon
$99.00
Faxon Duty Series Threaded Barrel for G19 Gen 1-5 9mm Nitride
Faxon's Duty Series Pistol Barrels for G19 / Glock® 19 are machined 100% in-house from stress-relieved 4150 CMV steel. These barrels are then given a black Nitride coating to increase lubricity, barrel life, and resistance to surface wear. All barrels are conventionally rifled to allow a wider range of ammunition to be used, including cast lead. The barrels drop into factory-spec slides with no gunsmithing required. Better-than-factory tolerances ensure a consistent, tighter lockup than OEM.
The Faxon Duty Series Threaded Barrel for Glock® G19 (Gen 1-5, including G19X & G45) delivers rugged duty-grade performance with suppressor-ready versatility. Featuring a threaded muzzle and full salt bath nitride finish inside and out, this barrel is engineered for hard use, defensive applications, and custom builds where reliability is paramount.
Key Benefits
- 4150 CMV Steel: Only the best steels for durability, longevity, and accuracy.
- 9mm SAAMI Chambers: Superior accuracy with complete SAAMI compatibility & boring reliability.
- Tighter Tolerances: Drop-in, yet better fitment and lock-up.
- Conventional Rifling: Fully compatible with cast bullets.
- 11 Degree Target Crown: Consistent bullet release for enhanced precision.
- Salt Bath Nitride Finish: Maximum corrosion resistance and lubricity inside and out.
- Threaded Muzzle: Ready for suppressors, compensators, or thread protectors.
Specifications
Why Choose the Duty Series
The Duty Series utilizes tough 4150 CMV steel and a complete salt bath nitride treatment for exceptional durability and corrosion resistance in demanding conditions. The threaded muzzle adds suppressor or compensator capability while maintaining full drop-in compatibility with generations 1-5 Glock® 19 platforms.
Installation & Compatibility
- Drop-in fit for factory-spec Glock® G19 slides (Gen 1-5, including G19X & G45) — no gunsmithing required.
- Important Note: Known compatibility issue with some Zaffiri Precision slides (ZPS.3v2 and ZPS.6 patterns) due to top window size/placement.
- 1/2-28 threads accommodate common 9mm compensators, suppressors, and adapters.
- Conventional rifling supports cast lead and jacketed bullets.
- Tighter-than-OEM tolerances for improved lockup and accuracy.
Frequently Asked Questions
Is this barrel drop-in?
Yes — direct replacement in factory Glock® G19 Gen 1-5 slides (including G19X & G45) with no modifications needed.
What finish is applied?
Salt bath nitride inside and out for maximum lubricity, wear resistance, and corrosion protection.
Can I use this with a suppressor?
Yes — the 1/2-28 threaded muzzle is compatible with most 9mm suppressors and compensators.
Is cast lead ammo safe?
Absolutely — conventional rifling allows safe use of cast lead bullets.
Will this work with aftermarket slides?
Compatible with most factory and aftermarket slides, but there is a known issue with certain Zaffiri Precision patterns (ZPS.3v2 and ZPS.6) due to top window placement.
Overview: Duty Series Threaded Barrel for Glock® G19
The Faxon Duty Series Threaded Barrel for Glock® G19 Gen 1-5 in Black Nitride provides hard-use reliability and suppressor-ready performance. Machined from stress-relieved 4150 CMV steel with conventional 1:10 twist rifling, SAAMI-spec chambers, and an 11° target crown, this drop-in barrel exceeds OEM standards for fit, function, and durability.
Fully salt bath nitrided inside and out, threaded for accessories, and backed by Faxon’s precision manufacturing, this barrel is the ideal upgrade for defensive, duty, or suppressed G19 builds.
Disclaimer: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Faxon nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.
- Caliber:
- 9mm
- Barrel Profile:
- Drop In, Duty Series
- Barrel Material:
- 4150 CMV
- Finish:
- Salt Bath Nitride
- Rifling Twist Rate:
- 1:10
- Muzzle Thread:
- 1/2x28
- Handgun Type:
- Glock® G19 Gen 2-5
-
-
Sold Out
-
Sold Out
-
Sold Out
Reviews
-
Faxon G19 replacement
I had originally purchased a threaded barrel which after a strange potential fluke or strange happenstance the original barrel started to rust. It was accurate, and reliable in terms of feeding, but still I was a bit saddened. Though Faxon is truly top notch. I didn’t even ask for a replacement yet they made sure that I had one. Replacing the barrel and this new one is running beautifully. I cannot complain about a single thing with this barrel. Being able to do what they did was absolutely great to see and gives me great faith in not only the products but the company itself. Faxon is now my go to barrel company, nothing beats their barrels weight, accuracy, price and especially their service. Thank you Faxon
-
Faxon Duty Series Threaded Barrel - Glock 19
Fits great in my Patriot slide. I tested it at the range and it shoots just as well as an OEM Glock barrel for much cheaper. I got the threaded version to use with the EXOS comp. Looking forward to trying that out as well!
-
Glock barrel
Groups almost half the size of OEM barrel. Literal clover leafs from 5yds. Paired with Faxon compensator this thing is a nail hitter. Fits Glock 19x with no issues. Thank you Faxon for rocking it.
-
Great Barrel
Great balance between quality and value. I have three of them.
-
Good, Simple, Threaded Barrel
Perfect for what I needed. Drop in fit with close tolerances. Slightly better accuracy than my factory Glock barrel. Good deal. Very happy.
-
Great product, and service
I love the barrel and in shipping there was a minor issue that the support team took care of quicky and with no fuss. I will use them again for purchases and highly reccomend!
-
Brought it to the range and I was very happy with its grouping.
I will be buying more faxon barrels for my Glock arsenal
-
Faxon barrel for Gen5 model19
Fast shipping ,impressed with Quality, and Performomance. Will highly Recommend. Also I may have gotten the last one. Says Sold Out. Very Happy. Thank you again.
-
Fantastic barrel at an amazing price.
I’ve been in the market for a threaded barrel for months. I finally purchased the Faxon and I’m beyond impressed. The fit and finish are outstanding and are well above what you would expect at this price. The barrel lock up is what surprised me the most, it FEELS solid. My factory barrel can’t compare. Great job goes out to Faxon, and if you’re considering this barrel, stop wasting time and order it. You’ll be glad you did.