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

Now: $195.95
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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"
  • Micro Carry Comp torqued to 8ft/lbs

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:


13 Reviews

  • 5
    If you’re looking to build a 19L, this is the ticket

    Published by Tristan Wiley on 23rd Mar 2022

    I haven’t shot it yet, but so far I like it. I chose this barrel because A: most bang for my buck. Other barrels are similarly priced but don’t even come with a thread protector, much less a comp; and B: needed a gen 5 barrel for a 19L build and this one was in stock.

  • 5
    Quality and customer service

    Published by Unknown on 24th Feb 2022

    Very prompt shipping. Quality product with excellent workmanship. Look forward to its service in my weapon

  • 5
    Glock 17 Gen 5

    Published by Vince on 14th Feb 2022

    Arrived on time, well packaged, 30 second drop-in, with a tight secure fit. There was nothing wrong with the accuracy of the OEM barrel, Griffin ATM is threaded and produces like groups @ 25 yds. Unable to test with suppressor at this time...

  • 5
    Amazing barrel and compensator

    Published by Victor A.A on 29th Jul 2020

    After just 100+ Rounds I can feel the noticeable difference with this compensator even for its size it’s very good and as for the barrel well it’s definitely beautiful as well as durable... you see I mainly upgrade my Glock so that way I can be more affective at protecting my loved ones so I honestly trust this quality. So my only regret is that I wish I was able to get a silencer for my Glock from them but sadly it’s out of my budget. So I highly and wholeheartedly recommend them to anyone.

  • 5
    Griffin G17 Gen5 with Micro Carry Comp

    Published by David Overland on 14th Dec 2019

    I was originally going to buy an OEM threaded barrel but during my search I ran across Griffin Armament. A little more expensive with the comp but what the hell. Got good reviews and I’m supporting a fellow Marine brother.
    I’ll have to admit, I was very skeptical of this compensator having tried others on competitive pistols over the years.
    The Machine work and finish on the barrel and compensator is spectacular.
    The barrel fit exactly like my OEM GEN5 barrel fit. As far as accuracy goes they seemed about the same. But I’m not a bull’s-eye shooter either.
    I was way impressed with that little compensator! Ran great with factory loads and ejection still was strong. And there was definitely a noticeable difference in muzzle rise and felt recoil. Not life-changing, but definitely noticeable.
    It’s even got me thinking about breaking my rule of non-modifying my carry gun. The Glock 43X.
    Awesome product!

  • 5
    Glock barrel

    Published by Chad Rodenbaugh on 1st Oct 2019

    The barrel took longer to get to me but the Quality seem pretty good

  • 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.

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