5.56/.223
AR-15 Left Hand 7.5" 5.56 NATO Slim M-LOK Upper Assembly - Moriarti Arms
The Moriarti Armaments Left Hand 7.5" 5.56 NATO Slim M-LOK Upper Assembly is the ideal choice for left-handed shooters looking to enhance their AR-15 platform. This compact, high-performance upper assembly is chambered in 5.56 NATO (also compatible with .223 rounds) and features a 7.5" lightweight contour barrel for quick handling and precision. With a 4150 CMV steel barrel hardened to 26-32 RC and a 1:7 twist rate, this upper offers excellent accuracy and reliable performance.
The upper comes with a black A2 flash hider and M4 feed ramps, ensuring smooth operation. The left-hand A3 flat top upper receiver is made from 7075-T6 aluminum, black hard coat anodized to mil-spec standards, and includes a forward assist and ejection port cover. The pistol-length gas system is paired with a .750" low-profile micro gas block, ensuring smooth cycling. Additionally, the 7" slim M-LOK handguard provides a lightweight, durable platform for mounting accessories.
This upper assembly is a direct replacement for your existing AR-15 upper and is fully compatible with most AR-15 lower receivers, allowing for an easy and efficient upgrade.
Key Features:
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Barrel: 7.5" lightweight contour barrel made from 4150 CMV steel, hardened to 26-32 RC and stress-relieved.
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Chamber: 5.56 NATO (also accepts .223 rounds).
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Muzzle Thread: 1/2-28 with black A2 flash hider.
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Upper Receiver: Left-hand A3 flat top, made from 7075-T6 aluminum, black hard-coat anodized, with forward assist and ejection port cover installed.
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Gas System: Pistol-length gas system with a .750" low-profile micro gas block made from 4140 steel for durability and corrosion resistance.
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Handguard: 7" slim design M-LOK handguard made from 6061-T6 aircraft-quality aluminum, black hard-coat anodized for durability.
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Weight: Lightweight and compact design for easy handling and maneuverability.
Does not come with BCG and/or charging handle. Images may not be an exact representation of the product.