Description
The Ballistic Advantage 13.9" BA Hanson barrel is one of those parts that quietly does everything right. It runs a mid-length gas system chambered in .223 Rem/5.56 NATO, and the whole thing is machined from 4150 Chrome Moly Vanadium steel with a QPQ salt bath nitride finish that shrugs off corrosion and keeps the bore slick round after round. The mid-length gas timing softens the impulse compared to a carbine setup, which is a big reason this length feels so smooth to shoot.
What Makes the BA Hanson Profile Different
The Hanson name refers to Ballistic Advantage's proprietary contour, and the trick is what happens near the gas block. Instead of the sharp shoulder you see on a government profile, the Hanson tapers down toward the muzzle to shed weight while keeping the barrel stiff where it matters. Less weight out front means less barrel whip and quicker recovery between shots, and you feel that balance the moment you shoulder the rifle. At 13.9 inches it stays nimble in tight quarters while still holding its own well past 300 yards.
Feeding and Twist on the 13.9" Hanson
Every Performance Series barrel gets a Nickel Boron coated extended M4 feed ramp extension. That coating is harder and slicker than the surrounding steel, so the high-wear ramp area keeps feeding cleanly even after thousands of rounds. The 1:7 twist rate handles the full spread of common loads, so whether you're running lighter 55-grain plinking ammo or heavier 62 to 77-grain projectiles for defense or distance work, it stabilizes them well.
Building With the BA Hanson Barrel
This one ships with a low-profile gas block already pinned in place, so you skip one of the fussier steps of a build and get a rock-solid gas setup right out of the gate. The muzzle wears standard 1/2×28 threads for your brake, flash hider, or suppressor mount, and it's high-pressure tested and magnetic particle inspected before it leaves the shop. Note that Hanson barrels aren't built to run aftermarket piston kits, so keep it direct impingement and you'll be golden.
Key Specifications
- Manufacturer: Ballistic Advantage
- Model: Performance Series
- Manufacturer Part Number: BABL556037F
- UPC: 819747020840
- Caliber: .223 Rem / 5.56 NATO
- Barrel Length: 13.9"
- Profile: BA Hanson (.750" gas block journal)
- Gas System: Mid-Length
- Twist Rate: 1:7
- Barrel Material: 4150 Chrome Moly Vanadium (CrMoV) Steel
- Finish: QPQ Corrosion Resistant Nitride
- Muzzle Thread: 1/2×28
- Gas Block Seat: .750" Low Profile
- Feed Ramp: Nickel Boron Coated Extended M4
- Testing: High Pressure Tested & Magnetic Particle Inspected
- Color: Black
What’s Included
- 13.9" BA Hanson 5.56 NATO barrel
- Pinned low-profile gas block (pre-installed)
Frequently Asked Questions
Does the BA Hanson barrel come with a gas block installed?
Yes. Every Hanson Series barrel ships with a low-profile gas block already pinned in place at the factory. That takes one of the trickier steps out of your build and gives you a reliable gas setup out of the box. You will still need to supply the rest of your gas system, like the gas tube.
What twist rate is this 13.9" Hanson barrel and what ammo does it like?
It runs a 1:7 twist, which is the do-it-all standard for a 5.56 build. It stabilizes lighter 55-grain loads for range days and handles heavier 62 to 77-grain projectiles for defense or longer-range work. That flexibility is a big part of why this twist is so popular.
Can I run a suppressor or muzzle device on the BA Hanson barrel?
Yes. The muzzle is cut with standard 1/2×28 threads, so it accepts common flash hiders, muzzle brakes, and suppressor mounts. Just match your device to your goals, especially if you plan to run a can down the road.
Will this Hanson barrel work with a piston system?
No. Ballistic Advantage designed the Hanson profile for direct impingement, and it is not built to work with aftermarket piston kits. Keep your build DI and it will run exactly as intended.







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