KAK Industry 14.5 Inch OE-SPEC 5.56 AR-15 Barrel

SKU: 121-0103-011

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Elevate Your AR-15 Performance with KAK Industry’s 14.5 Inch OE-SPEC 5.56 Barrel

Introducing the KAK Industry 14.5 Inch OE-SPEC 5.56 AR-15 Barrel, a popular choice among firearm enthusiasts for its reliable performance and exceptional value. This mid-length gas barrel is a testament to KAK Industry’s commitment to providing quality components directly to the retail customer.

Crafted from 41V50 chrome moly vanadium steel and featuring a nitride finish, this barrel offers enhanced durability and corrosion resistance. The mid-length gas system ensures smooth cycling and reliable function.

As a high-volume contract manufacturer for the firearms industry, KAK Industry brings the same quality parts provided to industry leaders straight to the retail customer. The OE-Spec line reflects KAK’s dedication to quality, offering you the performance you demand and the value you desire.

Upgrade your AR-15 with the KAK Industry 14.5 Inch OE-SPEC 5.56 Barrel, a tried-and-true option for shooters seeking a reliable and cost-effective solution.


  • Brand: KAK Industry
  • Model: 14.5 Inch OE-SPEC 5.56 AR-15 Barrel
  • MPN: 121-0103-011
  • Chamber: 5.56 NATO
  • Length: 14.5″
  • Gas System: Mid Length
  • Gas Block Size: .750
  • Threads: 1/2×28
  • Finish: Nitride
  • Twist: 1:7″
  • Material: 41V50 Chrome Moly Vanadium
  • Extension: M4 Feed Ramps
  • Marked for Caliber and Twist
  • Weight: 27.2 OZ
  • Barrel Dimpled for Gas Block Set Screw


Caliber5.56 NATO/.223 Remington
Barrel Length14.5 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
Weight27.2 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.