10.3" .300 Blackout BA Hanson profile in the Performance Series tier. 4150 CMV with QPQ nitride, 1:7 5R rifling, pistol-length gas, and a low-profile gas block included pinned in place.

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Ballistic Advantage Hanson w/ lo pro Performance Series .300 AR Barrel Black 10.3 in
The Ballistic Advantage 10.3" .300 Blackout Performance Series barrel is a compact BA Hanson option for .300BLK shooters who want more supersonic velocity than the shortest PDW barrels without going to a full 16-inch rifle barrel. The extra length over common 8-9 inch barrels can help supersonic loads, while the pistol-length gas system keeps the short-barrel recipe familiar.
The Performance Series configuration uses 4150 Chrome Moly Vanadium steel finished in QPQ salt bath nitride, with a 1:7 twist and 5R rifling. Ballistic Advantage describes the BA Hanson profile as lightweight, with a portion of the weight shifted from the front of the barrel to the back on its shorter lengths.
A meaningful spec on this barrel is that the low-profile gas block ships pinned in place from the factory. That saves the buyer a separate gas block purchase plus pinning service and reduces one installation variable. Muzzle threads are 5/8x24 for .30 caliber muzzle devices and suppressors.

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Add the Ballistic Advantage 10.3" .300 Blackout Performance Series Barrel to your build and see how it enhances your platform.