AR-15 .400 Legend 7.5" Pistol Build Kit | Black Nitride | Classic

.400 Legend

AR-15 .400 Legend 7.5" Pistol Build Kit | Black Nitride | Classic

Looking to build a .400 Legend AR-15 Pistol? Moriarti Armaments offers you the perfect base for your custom pistol project with this 7.5" Pistol Build Kit. Designed to give you big bore power in a compact, versatile package, this kit features a 6.8 SPC BCG, black nitride barrel, and pistol-length gas system to ensure reliable cycling and smooth operation.

This kit includes everything you need to complete your .400 Legend AR-15 Pistol, except for the lower receiver. Whether you’re looking to add this powerful round to your collection for tactical shooting, hunting, or home defense, this build kit provides the strength, durability, and precision you need.

Key Features:

• Barrel:

  • 7.5" 4150 CrMoV Steel Barrel chambered in .400 Legend for powerful performance and accuracy.

  • Government Profile designed for strength and reliability.

  • Black Nitride Finish for enhanced durability, corrosion resistance, and sleek appearance.

  • Twist Rate: 1:16 to stabilize the projectiles for better performance.

  • .750 Gas Block for compatibility with standard gas block systems.

  • Muzzle Thread Pitch: 5/8x24 to fit most common muzzle devices.

• Upper Receiver:

  • Mil-Spec 7075-T6 Aluminum Upper Receiver made from certified aluminum forgings for durability and strength.

  • Black Hardcoat Anodized Finish for superior wear resistance and protection against corrosion.

  • Includes Mil-Spec Forward Assist, Dust Cover, and Brass Deflector for a reliable and functional upper.

• Gas System:

  • Pistol-Length Gas System for a smooth, reliable cycling experience.

  • .750 Low Profile Gas Block made from high-quality steel for durability and performance.

  • Stainless steel gas tube for smooth cycling and long-lasting performance.

• Bolt Carrier Group (BCG):

  • 6.8 SPC Bolt Carrier Group specifically designed to accommodate .400 Legend.

  • M16 Cut BCG, made from 8620 steel and nitride-coated for corrosion resistance and strength.

  • Features a properly staked gas key for secure operation and Milspec/MP tested for quality assurance.

• Charging Handle:

  • Mil-Spec Charging Handle made from 7075-T6 aluminum and anodized for durability and smooth operation.

• Handguards:

  • Includes 7" slim profile M-LOK free float rail (design may vary based on stock availability) for lightweight and easy customization.

  • Made from aircraft-quality aluminum and black anodized for durability and corrosion resistance.

• Lower Parts Kit:

  • Complete Mil-Spec AR-15 Lower Parts Kit, including necessary components like trigger guard group, pins, and springs.

  • Designed to provide seamless functionality for your build.

• Buttstock & Buffer System:

  • Includes a Pistol Buffer Tube Assembly with castle nut, end plate, AR-15 buffer and buffer spring.

Why Choose the AR-15 .400 Legend 7.5" Pistol Build Kit?

The .400 Legend round delivers incredible stopping power in a compact form, and this 7.5" Pistol Build Kit provides everything you need to build a reliable and durable AR-15 pistol. With its black nitride barrel, 6.8 SPC BCG, and pistol-length gas system, this kit offers performance and versatility, perfect for hunting, tactical use, or home defense.

Note: the kit comes unassembled. Images may not be an exact representation of the product.