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Ballistic Advantage Modern Series 14.5" 5.56 M4 Profile Barrel
The Ballistic Advantage Modern Series 14.5" M4 Barrel (BABL556009M) is a workhorse component designed for shooters building a reliable, versatile carbine. Machined from 4150 Chrome Moly Vanadium steel, this barrel offers the perfect balance of weight and durability. As part of the Modern Series, it features a QPQ Corrosion Resistant finish (often referred to as Melonite or Nitride), which provides a harder-than-chrome surface both inside and out. This treatment significantly increases the barrel's lifespan and resistance to harsh environments while maintaining superior accuracy compared to traditional chrome lining.
The M4 profile includes the classic "grenade launcher" cutout, providing a balanced feel and historical aesthetic for clone builds or duty-style rifles. It utilizes a carbine-length gas system for reliable cycling and features an M4 feed ramp extension that is also QPQ coated for smooth, consistent feeding. With a 1:7 twist rate, this barrel is optimized to stabilize a wide variety of ammunition, specifically excelling with heavier 62gr to 77gr projectiles. Ballistic Advantage is so confident in their precision that this barrel comes with a Sub-MOA accuracy guarantee when using match-grade ammunition.
Important NFA Note: This barrel is 14.5 inches long. To avoid NFA "Short Barreled Rifle" (SBR) regulations, it must be used on a pistol-braced lower, a registered SBR lower, or have a muzzle device permanently pinned and welded to reach a total length of 16 inches.
Key Features
- Sub-MOA Guarantee: Guaranteed to deliver a 3-shot group of 1 inch or less at 100 yards with match-grade ammo.
- QPQ Nitride Finish: Highly durable, salt-bath nitride finish provides elite corrosion resistance and a low-friction bore.
- 4150 CMV Steel: Built from mil-spec-grade Chrome Moly Vanadium steel for maximum heat and wear resistance.
- M4 Profile: Classic service-rifle contour that balances rigidity with weight savings.
- Optimized Twist: 1:7 twist rate is ideal for the most popular modern defensive and match loads.
- Fail-Safe Feeding: Includes an M4 extension with precision-machined and QPQ-coated feed ramps.
Product Specifications
- Brand: Ballistic Advantage
- Series: Modern Series
- Caliber: 5.56 NATO / .223 Remington
- Length: 14.5 Inches
- Profile: M4
- Gas System: Carbine Length
- Gas Block Diameter: .750"
- Twist Rate: 1:7" Button Rifled
- Muzzle Thread: 1/2x28 TPI
- Material: 4150 CrMoV Steel
- Finish: QPQ Corrosion Resistant (Black)
- Weight: 25.0 oz
- MPN: BABL556009M
- UPC: 819747020062
