400 Legend Barrels

# Premium .400 Legend AR-15 Barrels

Upgrade your next hunting or straight-wall AR build with a premium **.400 Legend AR barrel** from Mid State Firearms. Designed for hunters who want exceptional terminal performance without the heavy recoil of larger big-bore cartridges, the .400 Legend delivers outstanding accuracy, deep penetration, and impressive energy while remaining compatible with the versatile AR-15 platform. Developed specifically for straight-wall hunting regulations, the .400 Legend has quickly become a popular choice for whitetail deer, hogs, black bear, and other medium to large game. It offers energy comparable to the .450 Bushmaster while producing noticeably less recoil, making it easier to shoot accurately and comfortably.

## Why Choose a .400 Legend Barrel?

A quality barrel is the heart of any AR build, and our .400 Legend barrels are built for dependable performance in the field. Whether you’re assembling a dedicated hunting rifle or upgrading an existing AR-15, the right barrel delivers the accuracy, reliability, and consistency needed for every shot.

Benefits of the .400 Legend include:

* Excellent stopping power for deer, hogs, and black bear
* Moderate recoil for faster follow-up shots
* Straight-wall cartridge compliance in many hunting states
* Superior energy compared to the .350 Legend
* Compatible with the AR-15 platform using a 6.8 SPC bolt
* Ideal for hunting inside 250–300 yards with proper ammunition

## Built for Reliable AR Performance

Our .400 Legend barrels are manufactured from high-quality steel and engineered to provide excellent accuracy and long service life. Available in popular hunting lengths, these barrels are designed to deliver dependable cycling with the proper gas system and quality components.

For a complete build, remember that the .400 Legend requires:

* A compatible **6.8 SPC bolt**
* AR-15 upper and lower receivers
* Compatible magazines
* Quality factory ammunition or properly developed handloads

## The Mid State Firearms Difference

At Mid State Firearms, we focus on providing dependable AR components that hunters and shooters can trust. Every barrel is selected with reliability, accuracy, and value in mind so you can build your rifle with confidence. Whether you’re preparing for deer season or building a dedicated straight-wall hunting rifle, you’ll find the components you need backed by knowledgeable customer service and fast shipping.

Browse our selection of **.400 Legend AR-15 barrels** above and complete your next hunting build with confidence.