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Ballistic Advantage Modern Series 14.5" 5.56 NATO Mid-Length Government Profile Barrel - BABL556010M - UPC 819747020055
Product Description
The Ballistic Advantage Modern Series 14.5" 5.56 NATO Government Profile Barrel (BABL556010M) is a premier duty-grade barrel designed to deliver exceptional accuracy, durability, and smooth recoil management for custom AR-15 and M4 rifle builds. Machined from 4150 Chrome Moly Vanadium (CrMoV) steel, this barrel is treated inside and out with a QPQ Corrosion Resistant (Melonite/Nitride) finish for extreme wear defense, thermal endurance, and barrel life far exceeding conventional chrome-lined options.
Featuring a mid-length gas system, the BABL556010M soft-tames the gas impulse of 5.56 NATO rounds, significantly reducing internal component wear and muzzle rise compared to traditional carbine-length gas systems on a 14.5-inch barrel. The government profile balances weight distribution, keeping the rifle maneuverable up front while maintaining structural rigidity under high cyclic firing.
With its fast 1:7" twist rate, this barrel stabilizes heavy 5.56 NATO and .223 Rem projectiles (such as 62gr, 75gr, and 77gr match loads) with ease. Threaded 1/2"-28 at the muzzle and featuring an M4 feed ramp extension and a 0.750" gas block journal, the Ballistic Advantage BABL556010M is a battle-ready foundation for pin-and-weld build setups, compact duty carbines, and home-defense builds.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Installs into all standard AR-15 / M4 upper receivers. Features an M4 feed ramp extension and a 0.750" gas block journal. Note: NFA rules apply if assembled on a lower receiver as a rifle without pinning/welding a muzzle device to meet 16" overall length (or when registered as an SBR/Pistol).
- Verify host upper receiver is clean, safe, and free of debris prior to barrel alignment.
- Apply anti-seize grease to upper receiver threads, seat the barrel extension, and torque barrel nut to 35–50 ft-lbs per handguard manufacturer specifications.
- Install a 0.750" gas block with a mid-length gas tube; verify gas port alignment before securing set screws or roll pins.
Key Features
- 4150 Chrome Moly Vanadium Steel: Heavy-duty barrel steel engineered for severe temperature cycles and extended barrel life.
- QPQ Corrosion Resistant Finish: Nitride/Melonite surface treatment provides severe abrasion, chemical, and corrosion resistance inside the bore and out.
- Mid-Length Gas System: Offers a smoother recoil impulse, reduced bolt speed, and decreased chamber wear over carbine gas systems.
- 1:7" Twist Rate: Perfectly stabilizes popular medium-to-heavy 5.56 NATO projectiles (55gr up to 77gr match loads).
- Government Profile Contour: Maintains duty-grade thermal capacity behind the gas block while keeping front-end weight light.
- 1/2"-28 Threaded Muzzle: Standard pitch accepts all popular 5.56mm flash hiders, muzzle brakes, and suppressor adapters.
Product Specifications
- Brand: Ballistic Advantage
- Line: Modern Series
- MPN / Part Number: BABL556010M
- UPC: 819747020055
- Caliber: 5.56 NATO / .223 Remington
- Barrel Length: 14.5 Inches
- Profile: Government Profile
- Gas System Length: Mid-Length
- Gas Block Journal: 0.750 Inches
- Twist Rate: 1:7" Right-Hand Twist
- Material: 4150 Chrome Moly Vanadium (CrMoV) Steel
- Finish: QPQ Corrosion Resistant (Nitride)
- Muzzle Thread: 1/2"x28 TPI
- Barrel Extension: M4 Feed Ramps
- Mass: ~22.0 oz (623.7 g / 1.38 lbs)
