Ballistic Advantage 6mm ARC 18 Inch AR 15 Barrel – SPR Profile Premium Black Series


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18 Inch 6mm ARC Barrel with Stainless Construction and Nitride Finish

For repeatable, long-range accuracy with 6mm ARC, this 18 inch barrel in your AR-15 fits the bill.  This barrel from Ballistic Advantage’s Premium Black Series features 416R stainless steel construction, with a black nitride finish to resist corrosion.  The full rifle-length gas system is tuned to take full advantage of 6mm ARC’s mild recoil impulse, allowing you to stay on target, and keep your groups tight.

This barrel also features a Nickel Boron coated barrel extension, ensuring reliable feeding from your magazine.  The extension mates up perfectly with any upper with M4 feed ramps.  Be sure to check out a compatible 6mm ARC/6.5 Grendel bolt carrier group, as well as a magazine to complete your build.

Sub-MOA Guarantee

Buying a Ballistic Advantage barrel means guaranteed accuracy. All Ballistic Advantage barrels are guaranteed to give Sub-Minute-of-Angle (MOA) accuracy with match grade ammunition.


  • Caliber: 6mm ARC
  • Length: 18″
  • Material: 416R Stainless Steel
  • Profile: DMR
  • Finish: QPQ Corrosion Resistant
  • Gas System Length: Rifle
  • Gas Block Journal: .750″
  • Twist Rate: 1:7 inches
  • Muzzle: 5/8×24 Threaded
  • Weight: 41.3 oz
  • Other Info: HP and MPI Tested


Caliber6mm ARC
Barrel Length18 inches
Barrel Twist Rate1:7 inches
Barrel Material416 Stainless
Muzzle Threads5/8/2024
Barrel FinishBlack Nitride
Gas Block Size.750″ Gas Block
Barrel ProfileSPR
Barrel Gas SystemRifle
Gas Block Journal Length1.9 inches
Barrel ExtensionM4
Weight41.3 ounces

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Ballistic Advantage Warranty!

If for any reason you have a warranty issue with one of our products, please describe your situation, include your name and order number or transaction ID. One of our technical specialists will then review your claim and contact you within 5-7 business days.

PLEASE NOTE: We cannot provide warranty work if your items have been altered by you or anyone other than Ballistic Advantage from their original state.

Please call 407-347-4584 if you have any questions regarding this policy.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 1 review
Jarrod Coffman

Ballistic Advantage 6mm ARC 18 Inch AR 15 Barrel - SPR Profile Premium Black Series

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