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5.56 Barrel for 16 Inch M4 by Anderson – Carbine Length

Only 1 Remaining

90 Day No-Hassle Returns We Pay Return Shipping

We have a 90-day no-hassle return policy. We pay return shipping.

If you need to request a return, contact us at support@at3tactical.com and we will send you a return label

After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.

Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at support@at3tactical.com. We may direct you to pursue your warranty claim directly with the manufacturer.

Your satisfaction is our #1 priority

If you’re dissatisfied with your purchase, in any way, please contact us at support@at3tactical.com – we will do our best to make it right.

Fast & Free Shipping On orders over $50

You will receive fast, free shipping for all orders over $50

Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.

Most orders received by 1pm CST ship the same day

You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.

Reliable and Consistent – Superior Quality Meets Affordability

Made from 4150 CMV steel with a parkerized finish, this barrel offers reliability, consistency and premium quality without hurting your pocket. Chambered in 5.56 NATO with a 1:7 twist rate, this barrel is perfect for a wide array of ammunition from 45 to 77 grains. Proudly made in USA and backed by a limited lifetime warranty.


  • A perfectly balanced barrel for better accuracy. Works just as well as other expensive brands. Great value for your money!


  • 4150 CMV steel makes barrel last long in action.

High Value

  • Superior quality at an unbeatable price.


  • CALIBER: 5.56 NATO
  • TWIST RATE: 1:7
  • MATERIAL: 4150 Chrome Moly Vanadium
  • FINISH: Parkerized
  • GAS SYSTEM: Carbine-Length
  • GAS BLOCK: .750?
  • MUZZLE THREAD: 1/2-28
  • ADDITIONAL SPECS/NOTES: Barrel is compatible with .223 Ammunition.

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Customer Reviews

Based on 7 reviews
Poor customer service.

You may have fair prices and fast shipping but no customer service. Got a bad barrel, called left two messages, no response. Had to contact the manufacturer to take care of the problem.

So sorry to hear about the issue, Douglas. We'll make sure this won't happen again.
Good barrel, good price, what’s not to like

Bought this barrel along with the 15.75 quad for my Anderson upper and lower, prob be buying more from at3 soon for future builds great products.

Thanks for sharing your feedback, Jeremy. We're glad you're satisfied with your purchase. Cheers!
Great Service, Good Packaging

I received this order quickly, well packaged and items in very good condition. Price was among the best around or better. Have not installed yet, but looking forward to doing so.

Thanks for the feedback, John! -- LM
Andersen barrels

Using Andersen barrels for all my builds and no complaints.

Thanks for the feedback, Jeff! We appreciate it. -- LM
Anderson 5.56 Barrel

The product itself is what it is. Very pleased with it. Of course, you can buy these just about anywhere, but if you want a competitive price and world class service, AT3 is the place to buy.