Moriarti AR-15 300 Blackout 14.5" Slim M-LOK Upper Assembly - 12" Free-Float Handguard / Thread Protector / 1X7 Twist

Product Code:MAR-300-14-12-THREAD
Availability:In Stock
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  • $289.99

  • $399.95

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Moriarti AR-15 300 Blackout 14.5" Slim M-LOK Upper Assembly - 12" Free-Float Handguard / Thread Protector / 1X7 Twist

Elevate your AR-15 build with the Moriarti Armaments 300 Blackout 14.5" Slim M-LOK Upper Assembly, designed for versatility, performance, and precision. This high-quality upper assembly offers smooth cycling and impressive accuracy for your 300 Blackout platform, making it an excellent choice for both tactical and recreational use. The 14.5" barrel paired with a pistol-length gas system delivers reliable cycling with less recoil for improved shot control, while the 12" Slim M-LOK free-float handguard provides a lightweight, ergonomic platform for mounting accessories.

Perfect for building a compact AR-15 rifle, this upper assembly is built with premium materials and features a nitride-coated barrel for durability and corrosion resistance. The A3 flat top upper receiver is crafted from 7075-T6 aluminum and features a black anodized finish for superior strength and wear resistance.

Key Features:

  • Cartridge: 300 Blackout – Ideal for both suppressed and unsuppressed shooting.
  • Barrel Length: 14.5" – Balanced for maneuverability and performance.
  • Barrel Profile: Medium Profile – Ideal for precision and durability.
  • Barrel Material: 4150 Chrome Moly Steel – Known for strength and longevity.
  • Barrel Finish: Black Nitride – Enhances durability, corrosion resistance, and performance.
  • Twist Rate: 1:7 – Perfect for stabilizing a wide range of bullet weights.
  • Gas System: Pistol-Length Gas System – Optimized for reliability and smoother cycling.
  • Muzzle Device: Thread Protector – Protects the threads for future muzzle device installation.
  • Upper Receiver: 7075-T6 Forged Aluminum – Strong, lightweight, and built to last.
  • Handguard: 12" Slim M-LOK Free Float Rail – Slim, ergonomic, and ideal for attaching accessories.
  • Thread Pitch: 5/8x24 – Standard for many AR-15 barrels and muzzle devices.
  • M4 Feedramps – Ensures smoother feeding and reliability.
  • Gas Block Size: .750 – Compatible with a wide range of gas blocks.

Specifications:

  • Overall Length: 14.5 in
  • Twist Rate: 1:7
  • Barrel Material: 4150V Chrome Moly Steel
  • Barrel Finish: Black Nitride
  • Gas System: Pistol Length
  • Muzzle Device: Thread Protector (Nitride Coated)
  • Handguard Length: 12 in
  • Handguard Type: Slim M-LOK Free Float
  • Gas Block Diameter: .750 in
  • Receiver Material: 7075-T6 Forged Aluminum
  • Receiver Finish: Black Hardcoat Anodized

Package Contents:

  • Moriarti AR-15 300 Blackout 14.5" Slim M-LOK Upper Assembly
  • 12" M-LOK Free Float Handguard
  • Thread Protector (Nitride Coated)

Note:
This upper assembly does not come with a Bolt Carrier Group (BCG) or Charging Handle. These can be purchased separately. The handguard design may vary based on stock availability, but all components maintain excellent quality.

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Tags: moriarti ar-15 300 blackout 14.5" slim mlok upper assembly /12" mlok / thread protector moriarti, ar-15, blackout, 14.5 14.5 14.5", m-lok, 12", free-float, handguard, 1x7, twist, line 14.5", 12"

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