16 in .300 Blackout 1:7 4150 CMV Barrel Pistol Length (QPQ)

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This Stag 15 barrel is chambered in 300 AAC Blackout with a step profile.  Finished in black nitride for strength & longevity, this 16 inch 1/7 twist rate barrel is ready to bring some punch to your next Stag 15 build.


Caliber: .300 Blackout

Length: 16"

Diameter at the gas port: .750"

Barrel Threading: 5/8x24

Barrel Profile: Step Profile

Barrel Material: 4150 Chrome-Moly Vanadium

Twist Rate: 1/7

Barrel Lining: Black Nitride

Barrel Coating: Black Nitride

Gas System: Pistol length direct impingement

SKU: STAG400151


Q: Will this work with my upper receiver?

A: The barrel assembly will work with any mil-spec upper receiver.

Q: Do you provide instructions on how to install the barrel?

A: Unfortunately we don't provide directions on how to install a barrel and recommend that it be installed by a gunsmith to prevent damage to the rifle.

Q: Do I have to purchase a matched bolt to my barrel?

A: With AR-15's as long as you are using the proper bolt for the caliber you do not need to match a bolt to the barrel.



2 Reviews

  • 5
    Good buy

    Posted by Ross on 17th Mar 2021

    Happy with the purchase. Reasonably priced, quality barrel. No fitment issues with my upper or gas system.

  • 5

    Posted by William Bell on 12th Aug 2020

    I used two of these barrels to build a left hand and a right hand upper. One for myself and the other for my son. Both barrels made accurate uppers. No function issues with either upper. I use mine almost exclusively with a suppresser shooting supersonic loads but I have shot subsonic loads to make sure that the subsonic rounds fed and functioned properly. My son shoots mostly supersonic with a forward blast baffle installed on the threaded muzzle.
    We both were able to take a whitetail deer with our 300 blackout and both deer dropped in their tracks when hit by 125 grain Nosler ballistic tips.
    I would not hesitate to use another Stag Arms barrel if I decided to build another rifle.