AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly / Mlok / Triport Brake

AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly / Mlok / Triport Brake

AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly / Mlok / Triport Brake - Unmatched Precision & Control

Elevate your AR-15 build with the AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly. This custom upper assembly is designed for ultimate precision, featuring a 17.1" 223 Wylde barrel, Pentagon-style spiral fluting, and a triport muzzle brake that optimizes recoil control and muzzle rise reduction. Whether you're into tactical shooting, range practice, or precision shooting, this upper assembly ensures superior performance with every shot.

Precision Barrel and Performance-Enhancing Features: The 17.1" barrel is crafted from 4150 CMV steel, nitride-coated for extra durability and corrosion resistance. The unique Pentagon spiral fluting reduces weight while enhancing the barrel’s rigidity for improved accuracy. The .223 Wylde chamber ensures compatibility with both 5.56 NATO and .223 Remington rounds, making it versatile for various ammunition types.

Key Performance Enhancements:

• Triport Muzzle Brake: The included triport muzzle brake redirects gases through three ports, significantly reducing recoil and muzzle rise, giving you quicker follow-up shots and enhanced control during rapid fire.
• Low Profile Gas Block & Mid Length Gas System: The .750 low-profile gas block and mid-length gas system ensure reliable cycling and smooth operation, minimizing wear for a longer-lasting performance.

Versatile Handguard and Receiver:

• 15" MLOK Free Float Rail: The 15" slim-profile MLOK rail provides a solid mounting platform for accessories like grips, lights, and optics, offering modularity for customization. Made from aircraft-grade aluminum and anodized for strength, it stands up to harsh conditions while remaining lightweight.
• A3 Flat-Top Upper Receiver: The 7075-T6 aluminum upper receiver is black hardcoat anodized to military specifications, providing a solid foundation for your build. It's equipped with a forward assist and dust cover, and includes M4 feedramps for smooth feeding.

Specifications:

• Barrel: 17.1" 4150 CMV HBAR, pentagon spiral fluted, nitride-coated, 1-8 RH twist, .750 under gas block, threaded 1/2x28, M4 feedramps.
• Gas System: Low profile .750 gas block, mid-length stainless steel gas tube.
• Muzzle Device: Triport muzzle brake in nitride.
• Handguard: 15" slim profile MLOK free-floating rail, black hardcoat anodized, made from aircraft-quality aluminum.
• Upper Receiver: A3 flat-top upper receiver, forged from 7075-T6 aluminum, black hardcoat anodized to Gov. specs..

Important Notes:

• This upper assembly does not include BCG or Charging Handle—available for separate purchase.
• Rails may differ in design based on stock availability but will always meet the same high-quality standards.
• Images may not be an exact representation of the product.