AR-15 Left Hand 10.5" Moriarti 5.56 NATO Slim Tactical M-LOK Upper Assembly / 4150 CMV Barrel

5.56/.223

AR-15 Left Hand 10.5" Moriarti 5.56 NATO Slim Tactical M-LOK Upper Assembly / 4150 CMV Barrel

Upgrade your AR-15 platform with the Moriarti Armaments 10.5" 5.56 NATO Slim Tactical M-LOK Upper Assembly, designed specifically for left-handed shooters. This upper assembly is the perfect solution for those looking for a compact, reliable, and high-performance 5.56 NATO chambered upper. Built with precision and high-quality materials, it’s ready to be mounted on your lower receiver for exceptional functionality.

The 10.5" light contour barrel is made from 4150 CMV steel, hardened to 26-32 RC, and stress-relieved for durability. It’s chambered in 5.56 NATO (also accepts .223 rounds), ensuring versatile ammo compatibility. The M4 feed ramps allow for smooth feeding, and the black A2 flash hider keeps flash signature to a minimum.

The left-hand A3 flat top upper receiver is crafted from 7075-T6 aluminum forgings and black hard coat anodized per military specifications, offering enhanced durability and corrosion resistance. With a carbine-length gas system, low profile gas block, and a 10" slim tactical M-LOK handguard, this upper ensures smooth operation and easy customization with M-LOK accessories.

This assembly is fully assembled, test-fired, and ready for action. Whether you’re upgrading your current setup or building a new rifle, this upper provides unmatched reliability and performance.

Key Features:

• Barrel: 10.5" light contour barrel made from 4150 CMV steel, hardened to 26-32 RC, and stress-relieved for maximum durability and precision.

• Chamber: 5.56 NATO, also accepts .223 rounds.

• Muzzle Thread: 1/2-28 with a black A2 flash hider to reduce flash and recoil.

• Upper Receiver: Left-hand A3 flat top with 7075-T6 aluminum forgings, black hard-coat anodized per mil-spec, with forward assist and ejection port cover installed.

• Gas System: Carbine-length gas system with a .750" low-profile micro gas block made from 4140 steel for corrosion resistance.

• Handguard: 10" slim tactical M-LOK handguard, made from 6061-T6 aircraft-grade aluminum, with a black hard-coat anodized finish for strength and durability.

• Weight: ~2.7 lbs – lightweight and compact, perfect for fast handling and maneuverability.

Does not come with BCG and/or Charging Handle. Rails may differ in style and design, depending on stock availability. The same excellent quality.