Griffin ATM™ Barrel - Fits Glock® G17 Gen 5 - Threaded 1/2x28 - With Micro Carry Comp

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Griffin ATM (Advanced Threaded Match) Barrels are billet machined from 416R chromium stainless steel to exacting tolerances for the ultimate in drop in match performance.  5 axis machining done in a single work holding positions all critical dimensions on the breech ensuring theoretically perfect geometrical relationship of barrel, slide and locking lug. Chambers are honed and polished to ensure an extremely smooth surface finish and optimal reliability with a wide range of ammunition from training to duty ammo.  Two years of research and testing provided the appropriate knowledge to machine the barrel dimensions for a perfect fitment; providing the best possible accuracy without sacrificing factory reliability.  Designed with concealed carry users in mind, this barrel gives you the utility of accessory and suppressor support while providing uncompromising reliability.   Don't lose confidence in your carry handgun by using sub par components.  

For a limited time this barrel comes with our patent pending Micro Carry Comp, a $64.95 value and an impressive performance add on for your favorite carry piece.  The Micro Carry Comp ( MC²) provides a low signature (resists printing while carrying concealed), fits a wide range of holsters without modification, and provides noticeable recoil reduction for faster more accurate follow up shots with enhanced overall control of the firearm. The Micro Carry Comp's miniature and lightweight package has near zero perceived effect on the handling and storage of the firearm.   


  • 416R Pre- hardened chromium stainless steel for peak accuracy potential through service life
  • Compatible with Glock® G17 Gen 5
  • 9mm SAAMI-spec chamber
  • Black Nitride finish resists surface wear & corrosion while providing increased surface hardness
  • ½"-28 threaded muzzle for suppressor or accessory support
  • Target crowned muzzle
  • Honed and polished chamber to ensure reliable function across a broad range of ammo
  • Broach cut rifling for reduced stress and uniformity of the bore 
  • All critical machining done in single work holding for exacting tolerances and manufacturing consistency from batch to batch. 
  • 1:10 twist rate
  • Overall length : 5" / with comp : 5.26"

GLOCK” is a federally registered trademark of Glock, Inc. and is one of many trademarks owned by Glock, Inc. or Glock Ges.m.b.H.  Griffin Armament is an independent manufacturer of parts and accessories that fit Glock® pistols, however it is not affiliated with or endorsed by Glock, Inc. or Glock Ges.m.b.H.  The use of Glock on this page is merely to advertise the sale of compatible parts or components.  

Additional Details

Thread Pitch:
Glock 17
Type Of Part:


7 Reviews

  • 5
    Glock 17 threaded barrel with micro comp

    Published by Lee on 29th Jun 2019

    Griffin hit a homer with this barrel. It locks up way tighter and the finish is excellent. I would put this barrel up against any other more expensive manufacturers. The micro comp is a pleasant bonus and looks fantastic on my Glock. This barrel makes my Glock a tack driver from 25-50 yards paired with rds. The milling on the barrel looks awesome too. Wouldn’t spend my money anywhere else!!

  • 5
    Gen 5 Glock 17 threaded barrel

    Published by Ken Bradwell on 6th Jun 2019

    Very nice barrel with tight lock up. The serrations also match the gun nicely.

  • 5

    Published by Herschel Williams on 13th May 2019

    Beautiful and functional, great price..Shoots very accurate..Just as good if not better that the factory barrel.

  • 5

    Published by Herschel D. Williams on 10th May 2019

    Incredible... Well made, beautiful tooling, great service. This has brought my Glock 17 Gen 5 into a new world, I am shooting tighter groups at 35', mostly bulls eyes at 5 yards .. Thanks for the great product and good service.

  • 5
    Glock G17 Gen5 Threaded Barrel with MicroComp

    Published by Edward J. Perrott on 19th Apr 2019

    I wanted a TB for my Gen 5 G17 FS MOS. I have purchased many barrels for various weapons, and this is the most well fabricated barrel I have ever purchased. Accuracy, craftsmanship, aesthetics - are all there. Furthermore, the price for the barrel alone is excellent, not to mention the free MicroComp. What a deal. I will be buying more for my other pistols. Veteran owned and made in USA as well. Congrats on a great product and many thanks. PS, I bought my barrel and this review was freely given.

  • 5
    Shoots and looks Awesome

    Published by Maurice Harris on 12th Apr 2019

    Love this barrel Awesome product thanks Griffin

  • 5
    Gen 5 Glock 17 threaded barrel with Mini Comp

    Published by Opie Baker on 20th Mar 2019

    I was looking at purchasing a much more expensive barrel when I ran across the Griffin Armamnet barrel.
    After receiving it I’ve ran multiple boxes of ammo through it with no problems. It’s just a accurate as my coworkers more expensive brands but with noticeable less recoil. The Mini Comp is where it’s at!!!!

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