KAK Industry 12.5 Inch Stainless Steel Midlength Gas .358 WIN AR-10 Barrel

SKU: 130-0301-001

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Meet “The Undertaker” – KAK Industry’s 12.5″ Stainless Steel Midlength Gas .358 WIN AR-10 Barrel

Designed for those seeking precision in the LR-308 platform, “The Undertaker” KAK 358 Winchester Barrel in 12.5″ offers versatility and reliability in a compact package. Crafted from 416R stainless steel, this mid-length gas barrel comes with a matte blasted gray finish for durability and a distinctive look.

The 1:12 twist rate, .750 gas block size, and 5/8-24 threads make it an ideal choice for those favoring the .358 Winchester caliber. The barrel is marked for caliber and twist, showcasing KAK Industry’s commitment to quality. With gas block dimples for easy installation and weighing 33.2 oz, “The Undertaker” is a precision-engineered solution fully made in-house by KAK Industry.

Upgrade your LR-308 build with the performance-driven design of “The Undertaker” KAK 358 Winchester Barrel – a testament to KAK Industry’s dedication to quality and innovation.


  • Brand: KAK Industry
  • Model: Undertaker 358 Winchester 12.5″ Mid-Length Gas AR10 Barrel
  • MPN: 130-0301-001
  • Caliber: .358 Winchester
  • Length: 12.5″
  • Gas System: Mid-Length
  • Gas Block Size: .750
  • Threads: 5/8×24
  • Finish: Matte Blasted Gray
  • Twist: 1:12″
  • Material: 416R Stainless Steel
  • Barrel Extension: DPMS LR-308
  • Weight: 33.2 oz
  • Gas Block Dimples
  • Made In The USA


Caliber.358 Winchester
Barrel Length12.5 inches
Barrel Twist Rate1:12 inches
Barrel Material416 Stainless
Muzzle Threads5/8/2024
Barrel FinishMatte Stainless
Gas Block Size.750″ Gas Block
Barrel Gas SystemMidlength
Gas Block Journal Length1.9 inches
Barrel ExtensionM4
Weight33.2 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.