Ballistic Advantage 5.56 AR-15 Barrel 14.5" Mid-Length 1/7 Twist
Ballistic Advantage
$161.50
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Ballistic Advantage
Ballistic Advantage 5.56 AR-15 Barrel 14.5" Mid-Length 1/7 Twist
The Ballistic Advantage 5.56 14.5" Mid-Length Government Profile barrel delivers exceptional accuracy and durability for AR-15 builds, combining premium materials with a corrosion-resistant finish engineered for demanding use.
- Machined from 4150 Chrome Moly Vanadium steel for superior strength and longevity
- QPQ Corrosion Resistant Finish protects against rust, wear, and harsh conditions
- Mid-length gas system offers smoother cycling and reduced felt recoil
- 1:7 twist rate stabilizes a wide range of 5.56 NATO and .223 Rem projectiles
- QPQ coated M4 feed ramp extension ensures reliable chambering under any conditions
- 1/2x28 threaded muzzle accepts suppressors, muzzle brakes, and flash hiders
Who This Is For
This barrel is ideal for serious AR-15 enthusiasts, competitive shooters, and home-defense builders who want a compact 14.5" platform without sacrificing reliability or precision. The mid-length gas system and Government profile make it a smart upgrade for anyone seeking a balanced, softer-shooting carbine that handles a broad spectrum of 5.56 ammunition with confidence.
Specifications
| Brand | Ballistic Advantage |
|---|---|
| Caliber | 5.56 NATO / .223 Rem |
| Length | 14.5 inches |
| Profile | Government |
| Material | 4150 Chrome Moly Vanadium |
| Finish | QPQ Corrosion Resistant |
| Gas System | Mid-Length |
| Gas Block Journal | .750" |
| Twist Rate | 1:7 inches |
| Muzzle Thread | 1/2x28 |
| Weight | 25 oz |
Frequently Asked Questions
What bullet weights does the 1:7 twist rate stabilize best?
The 1:7 twist rate is optimized for heavier 5.56 NATO and .223 Rem projectiles in the 62–77 grain range, such as the popular M855 and Mk262 loads. It will also reliably stabilize lighter 55-grain bullets, making this barrel highly versatile across a wide range of factory ammunition and handloads.
Does this barrel require a low-profile gas block, and what size?
Yes, this barrel features a .750" gas block journal, which is the standard diameter for AR-15 carbine and mid-length builds. You will need a low-profile or standard gas block with a .750" inside diameter. Ballistic Advantage and many other manufacturers offer compatible gas blocks in this size.
Can I permanently attach a muzzle device to make this barrel compliant for certain configurations?
Yes. The 14.5" barrel's 1/2x28 threaded muzzle is commonly used with a permanently attached muzzle device — such as a pinned-and-welded flash hider — to bring the overall barrel length to the federally required 16 inches for a non-NFA rifle. Always consult a qualified gunsmith to ensure proper permanent installation and legal compliance for your specific build.
