KAK Industry 12.5 Inch 5.56 NATO AR-15 Barrel

SKU: 121-0103-008

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Elevate Your AR-15 Performance with KAK Industry’s 12.5 Inch 5.56 NATO Barrel

Introducing the KAK Industry 12.5 Inch 5.56 NATO AR-15 Barrel from the VALUE-LINE series – a mid-length gas barrel designed to enhance the performance of your AR-15 rifle. Crafted with precision in-house from KAK Industry produced blanks, this barrel is part of the VALUE-LINE series, offering quality and affordability to discerning firearm enthusiasts.

Constructed from 41V50 chrome moly vanadium steel and featuring a nitride finish, this mid-length gas barrel ensures optimal durability and corrosion resistance. The 1:7 twist rate provides excellent stability with a variety of ammunition types, making it a versatile choice for your AR-15 build.

The VALUE-LINE series by KAK Industry combines quality craftsmanship with budget-friendly pricing. Each barrel undergoes meticulous air gauge inspection for correct bore size and tolerances, and a final inspection ensures proper headspace using calibrated gauging.

Upgrade your AR-15 with the KAK Industry 12.5 Inch 5.56 NATO Barrel – a reliable and cost-effective choice for those who demand performance without compromise.


  • Brand: KAK Industry
  • Model: 12.5 Inch 5.56 NATO AR-15 Barrel
  • MPN: 121-0103-008
  • Chamber: 5.56 NATO
  • Length: 12.5″
  • Gas System: Mid Length
  • Gas Block Size: .750
  • Threads: 1/2×28
  • Finish: Nitride
  • Twist: 1:7″
  • Material: 41V50
  • Extension: M4 Feed Ramps
  • Barrel Dimpled for Gas Block Set Screw
  • Weight: 23.7 OZ



Caliber5.56 NATO/.223 Remington
Barrel Length12.5 inches
Barrel Twist Rate1:7 inches
Barrel Material4150 CMV
Muzzle Threads1/2/2028
Barrel FinishBlack Nitride
Gas Block Size.750″ Gas Block
Barrel Gas SystemMidlength
Gas Block Journal Length1.9 inches
Barrel ExtensionM4
Weight23.7 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.

KAK Industry Warranty Information

Our #1 priority is your 100% satisfaction. If any product you purchase from us ever fails to 100% meet or exceed your expectation, please contact us via telephone or EMAIL and we will attempt to resolve the situation to your satisfaction. If you need to return an item, returns are accepted subject to the following guidelines:

No Returns or Refunds are allowed after 30 days from Invoice Date.

  • Shipping costs both ways are non-refundable. Orders that were shipped to you at no charge with a “Free Shipping” offer will have the cost of the original shipping deducted from the refund amount.
  • New items that have been used may not be returned unless defective.
  • Returns must include all accessories as shipped. Refunds will be adjusted for returns missing accessories, factory boxes, etc. or may be returned to the customer at the customer’s expense, at our option. If you are keeping or have lost some of the pieces, please don’t return the item.
  • Items marked Closeout or Blem, as well as Special Orders may not be returned and their sale is final.
  • Items that are Custom contract manufactured may not be returned and their sale is final unless defective
  • Returned items may be subject to a restocking fee.
  • Any damaged shipments must be reported to the carrier immediately for proper claim handling.
  • All returns must be prepaid. Insurance on returns is at your option and at your expense and risk. COD returns will NOT be accepted and the package will be returned to you.

Contact Details

Address: 2241 Celsius Ave, Unit C, Oxnard, CA 93030
Telephone: 805-981-4734
Email: sales@kakindustry.com

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