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Customer Reviews
Helpful Positive Review
BEAUTIFUL AND SOLID by Bhipp, Verified Owner, May 2, 2024
Looks great and shoots great. Not a single issue when put on my existing lower
1/1 found this helpful
Most Recent Reviews
great shooter by homey, Verified Owner, April 12, 2025
just got back from shooting my Moriarti arm 20 inch 223 wylde upper and couldn't be more happy the diamond flute barrel looks awesome but better than that, it shoots and preforms excellent , shot 40 rounds with ADI 223 55 grain ammo and shot 5 shot...
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Caliber: .223 Wylde Overall Length: 20 inBarrel Length: 20 inBarrel Profile: HBAR Contour Gas System Length: Rifle Length Barrel Twist Rate: 1-8 RH Handguard Type: Free-Float Muzzle Device: Muzzle Brake Color: Black Handguard Length: 15 in

Code: 5MY-URC-MORI03-MAR-556-20DMD-15

MPN: MAR-556-20DMD-15

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List: $449.95Save 18%
$368.49

Product Info for Moriarti AR-15 5.56/.223 20in Stainless Steel Diamond Fluted Tactical Upper Assembly

The AR-15 5.56/.223 20 Stainless Steel Diamond Fluted Tactical Upper Assembly is a key component to consider when customizing your AR-15 rifle. CA and NY compliant.image

Specifications for Moriarti AR-15 5.56/.223 20in Stainless Steel Diamond Fluted Tactical Upper Assembly:

Manufacturer: Moriarti
Caliber: .223 Wylde
Overall Length: 20 in
Barrel Length: 20 in
Barrel Profile: HBAR Contour
Gas System Length: Rifle Length
Barrel Twist Rate: 1-8 RH
Handguard Type: Free-Float
Muzzle Device: Muzzle Brake
Color: Black
Fabric/Material: 7075-T6 Aluminum
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 15 in
Gun Rail: M-LOK
Magazine Included: No
Mount Type: M-LOK

Features of Moriarti AR-15 5.56/.223 20in Stainless Steel Diamond Fluted Tactical Upper Assembly

  • Barrel: The centerpiece of the assembly, the barrel, is crafted from stainless steel and comes in at 20 inches long. The barrel chamber supports both 5.56 NATO and .223 Remington rounds. The steel makes the barrel corrosion-resistant, which significantly extends its service life.
  • Diamond Fluting: The barrel has been diamond fluted. Fluting refers to the process of removing material from the barrel, creating ridges. This design increases the barrels rigidity and assists in faster cooling during rapid fire.
  • Gas System: The assembly has a rifle-length gas system. The placement of the gas block and tube greatly affect the firearm's recoil and cycle rate.
  • Finish: Stainless steel offers not only excellent strength but also an elegant, modern aesthetic.
  • Handguard: A full-length handguard is generally provided, usually featuring M-LOK rail systems for accessory attachment. The design may vary depending on the model.

Package Contents:

  • Moriarti AR-15 5.56/.223 20in Stainless Steel Diamond Fluted Tactical Upper Assembly

Moriarti AR-15 5.56/.223 20in Stainless Steel Diamond Fluted Tactical Upper Assembly Orderable Models

List of Orderable Models

  • Moriarti AR-15 5.56/.223 Stainless Steel Diamond Fluted Tactical Upper Assembly, Black, 20in, MAR-556-20DMD-15 , MPN: MAR-556-20DMD-15 , Code: 5MY-URC-MORI03-MAR-556-20DMD-15
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