.300 Blackout 16″ Heavy Barrel – Pistol Length

4.62 out of 5 based on 26 customer ratings
(26 customer reviews)


  • CALIBER: .300 Blackout
  • TWIST RATE: 1:8
  • MATERIAL: 4150 Chrome Moly Vanadium
  • FINISH: Parkerized
  • GAS SYS: Pistol
  • MUZZLE THREAD: 5/8-24
  • TREATMENT: Non  & RF85
  • ADDITIONAL SPECS/NOTES: Not compatible with any other Caliber
UPC: N/A 646437870108 640901516189 SKU: N/A Categories: , Tags: , , , , , , ,

Additional information

Weight N/A
Dimensions N/A

Non-RF85, RF85 Treated

26 reviews for .300 Blackout 16″ Heavy Barrel – Pistol Length

  1. 5 out of 5

    Does this have M4 feed ramps? Will it run both super and sub without a suppressor, or is your carbine gas barrel a better choice? I’m looking for a barrel to mount on my Anderson upper I recently purchased. Thanks!

    • Yes it has M4 feed ramps, you need an adjustable gas block to run super and sub. We think the pistol length performs better.

  2. 4 out of 5

    Does this barrel come with block and tube?

    • No Sir

  3. 4 out of 5

    Is this barrel Crome lined

    • No Sir, 4150 Chrome moly

  4. 5 out of 5

    What size gas block do you need

    • .750

  5. 3 out of 5

    When will this be back in stock?

    • Two weeks

  6. 5 out of 5

    Great barrel for the price. Outstanding job Anderson.

  7. 5 out of 5

    When will this be available for order?

  8. 5 out of 5

    Great barrel. Ran everything from hornady A-Max to the 245gr Missouri bullet cast rounds. Nice work

  9. 5 out of 5

    I want to build a 300 blackout using this barrel. I see from posts that I should use the .750 gas block. Have read that I might need to use an adjustable gas block. Any thoughts??? PS I really like using Anderson Parts. Always fit, always work, always reasonable prices. Keep up the good work.

  10. 5 out of 5

    built rifle with this pistol length gas port and an adjustable gas block. Fires both super- and sub-sonic ammo just fine with a standard BCG and buffer setup. Accuracy is right on.

  11. 1 out of 5

    This barrel sucks! Best group achievable is 3″ from a rest at 50 yards. After burning 500 rounds trying to get this barrel to shoot I’m done. Contacted Anderson by email and after answering multiple questions I haven’t heard a word. Appearent their warranty is not worth a crap.

    • Please let us know who you were dealing with.
      We have not had this issue before on the barrels.
      What was the order # so we can look it up?

  12. 5 out of 5

    Awesome barrel. Can’t beat the quality at double the price. I see the same complaints on most mfgs. and most mfgs. don’t offer offer this price. You bought a great barrel at a cheap price. If someone isn’t happy with it, then something is wrong. Anderson will help. If its the barrel, they will resolve it. If its not, they will help you resolve the problem. Be patient and you will be satisfied. Don’t jump to conclusions unless you know your shit. This is a great buy so don’t screw it up for everyone.

  13. 5 out of 5

    Is this barrel dimpled for gas block set screws?

    • No Sir

  14. 5 out of 5

    When can I expect to see these in stock? I’ve had great luck with all your other barrels!

    • We update the website everyday 4PM EST

  15. 5 out of 5

    Purchased the 16″ Hbar barrel w the pistol gas system. Shot like a champ w a standard gas block, very happy w Anderson’s customer service. Was shooting 150 gr American eagle and loaded my own 147 gr projectiles using 296 powder.

  16. 5 out of 5

    when will this be back in stock

    • 3-4 weeks

  17. 5 out of 5

    I bought this barrel and received it very quickly. I am very happy with the quality of this barrel. Will the headspace need to be adjusted?

  18. 3 out of 5

    When are there going to be back in stock?

    • yes they should be back in stock soon

  19. 5 out of 5

    Built my 300 BLK using this barrel and Anderson Stripped upper, stripped lower, lower parts kit. Shoots great. Accuracy is great. Only have 40 rounds or so through it so far. Thanks for the reasonable prices on great parts!

    • Thank you for the support

  20. 5 out of 5

    When will this be back in stock?

    • these are in stock now

  21. 5 out of 5

    Exellent barrel at a great price point. My go to load is the Barnes 110 Tac-Tx bullet on top of H110, CCI 400 primer, Federal Mil case, COAL 2.250. This load hovers slightly over 1/2″ at 100 yards for five shot groups.

    • awesome
      Keep shooting

  22. 5 out of 5

    ” you need an adjustable gas block to run super and sub. We think the pistol length performs better.”

    Do you think pistol length gas on a 16″ barrel still works better when attaching a suppressor?

    I’ve also heard that both super un-suppressed and subsonic suppressed loads can function without adjustable gas. Do you find this to be true? However, the AAC rep I talked to years ago also said that only 1680 powder works very well for the subsonic loads.

    • we offer a carbine gas and pistol gas set up for the 16 inch 300 blackout. We have no issues with carbine length for 16”

      when it comes to the shorter lengths the pistol gas works better

  23. 5 out of 5

    When will the 300 black out barrels be back in stock 16″ heavy non rf85 if you could email when back in stock I have everything but the barrel thank you I really love your products

    • These barrels should be back in stock later this week

  24. 5 out of 5

    When will these be back in stock again?

    • in stock now

  25. 5 out of 5

    Something came up and I need to cancel my order. Now they’re out of stock again. /cry/ When will these be back in stock?

    • just added some to stock

  26. 5 out of 5

    I want to build a 300 Blackout dissipator with a pistol length gas tube and an A2 sight at rifle length. What is the outside barrel diameter at the normal carbine or rifle gas port location?

    • .750 is the diameter

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