AR-15 7.62x39 5" Hybrid Pistol Upper – Spitfire Muzzle, M-LOK

5" 7.62x39 Hybrid Pistol Upper: Specs

The AR-15 7.62x39 5" Pistol Hybrid Upper Assembly with Spitfire Muzzle Brake and MLOK Rail is the perfect addition to enhance your AR-15 pistol. Designed for quick handling and reliable performance, this upper assembly is made with premium components and is fully USA-made. Compatible with nearly any AR-15 lower receiver, this upper assembly offers outstanding quality and precision, ideal for those looking to upgrade or build a 7.62x39 pistol.

Key Features:

• Barrel:

  • 5" Heavy Barrel made from 4150 CMV steel with a nitride finish for added durability and corrosion resistance.
  • Chambered in 7.62x39, with a 1-10 RH twist for optimal stability and accuracy.
  • .750 under gas block, 5/8x24 threaded, and finished off with a "Spitfire" Muzzle Brake for reduced recoil and muzzle rise.
  • M4 feedramps for smooth feeding and enhanced reliability.

• Upper Receiver:

  • A3 Flat Top Upper Receiver made from certified 7075-T6 aluminum forgings.
  • Black hardcoat anodized to government specifications for strength and corrosion resistance.
  • Includes forward assist and dust cover installed.
  • M4 feedramps for compatibility with a wide range of AR-15 components.

• Gas System:

  • .750 Low Profile Gas Block made from steel and black hardcoat anodized for long-lasting performance.
  • Micro-length gas system ensures reliable cycling in shorter barrel setups.

• Handguards:

  • 4" Ultra Slim MLOK Free Floating Rail provides a sleek and lightweight design.
  • Made from aircraft-quality aluminum with a black hardcoat anodized finish for a clean, durable look.

Does Not Include:

• BCG (Bolt Carrier Group)
• Charging Handle

These components can be purchased separately to complete your build.

Additional Information:

• Mil-Spec quality construction ensures top-tier reliability and durability.
• Designed for use with 7.62x39 caliber ammunition, ideal for those looking to build a high-performance AR-15 pistol or carbine in this caliber.
• Images may not be the exact representation of the product.

FAQ

What do I need to run a 7.62x39 upper?

A standard mil-spec AR-15 lower, a 7.62x39 bolt carrier group with the larger 7.62x39 bolt face, and AR-15 pattern 7.62x39 magazines. A standard 5.56 bolt and magazines will not work.

Why might I get light primer strikes?

Many 7.62x39 loads use hard military-style primers. A heavier hammer spring or an enhanced firing pin usually solves it; see our guide linked below.

What twist rate does it use?

A 1:10 twist, the standard for 7.62x39, which stabilizes common 123 gr and heavier loads.

Related: 7.62x39 AR-15 uppers · fixing light primer strikes on an AR-47 · .30 cal suppressors