The Ballistic Advantage Performance Series 5.56 16-inch AR-15 Barrel (brand part no. BABL556013F) is machined from 4150 Chrome Moly Vanadium steel and chambered in 5.56x45mm NATO for shooters building or upgrading a midlength AR-15. Ballistic Advantage finishes the barrel with a QPQ corrosion-resistant treatment and adds a Nickel Boron coated M4 feed ramp extension for smoother, more reliable feeding. The Lo Pro gas block seat is machined to 1.03 inches specifically for 0.750-inch low-profile gas blocks, keeping the barrel’s profile slim ahead of the handguard. For AR-15 builders who want a durable, precision-machined barrel from a trusted parts maker, this AR15 barrel is a solid midlength foundation.

Key Specifications

• Chambered in 5.56x45mm NATO / .223 Remington, the standard AR-15 chambering.
• Barrel length measures 16 inches, the federal minimum for an unregistered rifle-configured lower.
• Rifling twist rate is 1:7, stable with heavier bullet weights common in 5.56.
• Built with a midlength gas system for smoother recoil impulse than a carbine-length setup.
• Machined from 4150 Chrome Moly Vanadium steel for strength and heat resistance.
• Finished with a QPQ corrosion-resistant treatment for long-term durability.
• Feed ramps use a Nickel Boron coating for smoother, more reliable cycling.
• Uses a Lo Pro gas block seat machined to 1.03 inches for 0.750-inch low-profile gas blocks only.
• At exactly 16 inches, the barrel meets federal length rules without NFA registration on a standard rifle-configured lower.

Frequently Asked Questions

What gas block does this barrel need? A 0.750-inch low-profile gas block sized to the 1.03-inch Lo Pro gas block seat.

Why choose a 1:7 twist rate? It stabilizes heavier 5.56 bullets, roughly 68 to 77 grains, while still handling lighter, faster loads.

Does the barrel include a treated feed ramp? Yes, it features a Nickel Boron coated M4 feed ramp extension for smoother feeding and added corrosion resistance.

Buy the Ballistic Advantage Performance Series 5.56 16in AR-15 Barrel

A midlength gas system paired with 4150 CMV steel and a QPQ finish gives builders a durable, accurate foundation for a general-purpose AR-15. Order it from our Lubbock, Texas gun shop for fast, insured shipping.