Faxon Duty Series Barrel for G19, Compact, Gen 2-5, 9mm, 4150, QPQ Nitride, Threaded

Usually ships within 2 business days.
$139.00 $90.35
(You save $48.65 )
(7 reviews)
Current Stock:

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.

Why Faxon Pistol Barrels?

  • 4150 or 416-R Stainless - 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

Technical Specifications:

  • Handgun Type: G19
  • Barrel Caliber: 9mm
  • Barrel Profile: Drop In (Compatible with Gen 1-5 including 19x and G45)
  • Barrel Material: 4150
  • Barrel Twist: 1:10
  • Muzzle Thread: 1/2x28 TPI
  • Crown: 11-degree Target Crown
  • Rifling Method: Button Rifled, Fully Stress Relieved
  • Rifling Type: Conventional 
  • Inside Finish: Salt Bath Nitride
  • Outside Finish: Salt Bath Nitride 


Please note: There is a known issue of compatibility with Faxon Glock pattern barrels and some patterns of Zaffiri Precision slides.  This seems to be an issue with ZPS.3v2 and ZPS.6 pattern slides due to the size and placement of the top window on the slide.  

 *Threaded barrels will not ship to CA 


“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

Barrel Caliber:
Barrel Profile:
Drop In, Duty Series
Barrel Material:
4150 CMV
Salt Bath Nitride
Rifling Twist Rate:
Muzzle Thread:
Handgun Type:
Glock® G19 Gen 2-5


  • 5
    Great Barrel

    Posted by Styxx on Sep 11th 2023

    Great balance between quality and value. I have three of them.

  • 5
    Great product, and service

    Posted by Ash R on Aug 14th 2023

    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!

  • 5
    Brought it to the range and I was very happy with its grouping.

    Posted by Jonathan Dana on Jan 12th 2023

    I will be buying more faxon barrels for my Glock arsenal

  • 5
    Faxon barrel for Gen5 model19

    Posted by Mark Biggerstaff on Jan 5th 2023

    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.

  • 5
    Fantastic barrel at an amazing price.

    Posted by Michael Harris on Dec 16th 2022

    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.

  • 5
    Threaded Barrel / Glock

    Posted by Guy Thomas on Nov 2nd 2022

    Perfect fit up, great finish and excellent performance.

  • 5
    G19 Duty series threaded barrel

    Posted by Samuel on Nov 28th 2017

    Good drop in fit. Group sizes are great with this barrel, slightly better than with factory barrel,which was not bad,but I needed a threaded one.