Ballistic Advantage 20″ 5.56 Government Profile Barrel – Modern Series
The Ballistic Advantage 20″ Modern Series Barrel (BABL556026M) is the quintessential choice for builders looking to recreate the legendary reliability and soft-shooting nature of the M16A2 or M16A4 platforms. Machined from 4150 Chrome Moly Vanadium (CMV) steel, this barrel is engineered to maximize the ballistic potential of the 5.56 NATO cartridge. The full 20-inch length ensures peak muzzle velocity, while the rifle-length gas system provides a significantly smoother recoil impulse compared to shorter carbine-length setups, reducing wear on your bolt carrier group and enhancing long-range consistency.
Every Modern Series barrel undergoes a QPQ Nitride treatment (also known as Melonite), which provides superior corrosion resistance and surface hardness both inside the bore and on the exterior. This process results in a barrel that is easier to clean and significantly more durable than traditional chrome lining without sacrificing accuracy. Furthermore, all Ballistic Advantage barrels are HP (High Pressure) and MPI (Magnetic Particle Inspected) tested and come with a sub-MOA accuracy guarantee when used with match-grade ammunition. Whether you are building a dedicated precision rifle or a classic "Musket" build, the BABL556026M delivers professional-grade performance at an accessible price point.
Includes: 20" 5.56 NATO Barrel. Requires a .750" gas block and rifle-length gas tube (sold separately).
Key Features
- Rifle-Length Gas System: Offers the smoothest cycling possible, leading to faster follow-up shots and less felt recoil.
- 4150 CMV Steel: High-grade mil-spec material designed for longevity and high heat resistance during sustained fire.
- QPQ Nitride Finish: A deep, non-reflective black finish that is incredibly resistant to rust and abrasive wear.
- Sub-MOA Guarantee: Ballistic Advantage guarantees a 3-shot group of 1 inch or less at 100 yards with match ammunition.
- 1:7 Twist Rate: Optimized for stabilizing heavier 62gr to 77gr projectiles for superior long-range performance.
- M4 Feed Ramps: Precision-machined extension ensures reliable feeding with a wide variety of 5.56 NATO and .223 Rem projectiles.
Product Specifications
- Brand: Ballistic Advantage
- Series: Modern Series
- Caliber: 5.56 NATO
- Length: 20 Inches
- Profile: Government
- Gas System: Rifle Length
- Gas Block Journal: .750 Inches
- Twist Rate: 1:7 TPI
- Material: 4150 Chrome Moly Vanadium
- Finish: QPQ Corrosion Resistant (Nitride)
- Muzzle Thread: 1/2x28 TPI
- Weight: 2.19 lbs (35 oz)
- MPN: BABL556026M
- UPC: 819747020154