NBS 10.5" 7.62x39 4150 Carbine Medium 1:10 Barrel - Black Nitride - 76239C10.5MED50B10

Unlock the compact power of the 7.62×39 cartridge with the 10.5″ 7.62×39 4150 Carbine Medium 1:10 Barrel in Black Nitride. Engineered for AR-15 platforms, this precision barrel delivers reliable performance in close-quarters scenarios, making it ideal for pistol or short-barreled rifle builds. Its durable construction ensures longevity, while the optimized twist rate stabilizes bullets for consistent accuracy.

Key Features

• Premium 4150 Steel Construction: Forged from high-quality 4150 chrome moly vanadium steel, this barrel withstands intense heat and pressure, providing exceptional durability for demanding range sessions or defensive applications.
• Black Nitride Finish: The advanced nitride (Melonite) coating enhances corrosion resistance, reduces friction for smoother operation, and extends barrel life without compromising on weight or balance.
• Medium Contour Profile: Balances rigidity and maneuverability, reducing weight compared to heavy profiles while maintaining accuracy and heat dissipation during extended firing.
• 1:10 Twist Rate: Perfectly suited for 7.62×39 ammunition, ensuring stable bullet rotation for improved grouping and terminal ballistics at short to medium ranges.
• Carbine-Length Gas System: Promotes reliable cycling with a 0.75″ gas block journal, minimizing recoil and enabling compatibility with standard AR-15 components when paired with the right bolt carrier group.

Technical Specifications

• Barrel Length: 10.5 inches
• Caliber: 7.62×39
• Platform: AR-15
• Gas System: Carbine
• Muzzle Threads: 5/8×24
• Finish: Black Nitride
• Profile: Medium
• Weight: 14 oz
• Overall Dimensions: Length 12.5″, Width 3″, Height 3″

Why Choose This Barrel?

Building an AR-15 in 7.62×39 offers access to affordable, widely available ammunition with proven stopping power. This barrel addresses common pain points like unreliable feeding and excessive wear by featuring a robust design tested for compatibility. The compact 10.5″ length enhances handling in tight spaces, ideal for home defense or tactical training, while the nitride finish combats environmental wear. Users appreciate its straightforward installation and consistent performance, solving the challenge of integrating AK-style rounds into the AR ecosystem without sacrificing modularity.

Elevate your AR build with this high-value barrel that combines affordability with professional-grade features. Perfect for enthusiasts seeking a versatile, no-fuss upgrade—add it to your cart and experience enhanced reliability today.

Frequently Asked Questions

1. Is this barrel compatible with standard AR-15 receivers?
Yes, it’s designed for AR-15 platforms, but for optimal performance with 7.62×39, pair it with a dedicated BCG and magazines like those from CMMG or Brownells to ensure smooth feeding.

2. What gas system length is best for a 10.5″ 7.62×39 barrel?
The carbine-length gas system on this barrel provides balanced operation, reducing over-gassing issues common in shorter setups while maintaining reliability across various ammo types.

3. Does the short barrel length affect 7.62×39 velocity?
At 10.5″, you’ll see slightly reduced muzzle velocity compared to longer barrels, but it still delivers effective energy for close-range applications, prioritizing maneuverability over max speed.