Moriarti AR-15 16″ 6MM ARC Nitride Rifle with M-LOK Rail & Alpha Stock

The AR-15 16″ 6MM ARC Rifle from Moriarti Armaments delivers exceptional long-range precision in a lightweight, reliable platform. Engineered for superior ballistics, this 6MM ARC semi-auto rifle is ideal for extended-range shooting, hunting, and tactical use. Built on forged components and precision-machined parts, it offers the perfect combination of performance and value.

The 16" 416R stainless steel barrel, finished with a nitride coating, ensures enhanced barrel life and corrosion resistance. Paired with a 12” M-LOK free-floating handguard, the rifle offers optimal modularity and reduced weight without sacrificing rigidity. The Shark muzzle brake tames recoil and muzzle rise, keeping you on target for faster follow-up shots.

This AR-15 rifle includes a Moriarti Arms forged lower receiver with a tension adjustment screw for improved upper/lower fitment, a mil-spec BCG designed for 6.5 Grendel compatibility, and an Alpha 6-position mil-spec stock for a comfortable, adjustable shoulder fit.

Features:

• Caliber: 6MM ARC

• Barrel: 16" 416R stainless steel, nitride coated, 1:7 twist, 5/8x24 thread

• Muzzle Device: Shark muzzle brake

• Gas System: Carbine-length stainless gas tube with .750 low-profile steel gas block

• Rail: 12” slim-profile M-LOK free-floating rail

• Upper Receiver: 7075-T6 aluminum forging, flat top, M4 feed ramps

• Bolt Carrier Group (BCG): M16 8620 steel, nitride coated, MP tested, 6.5 Grendel compatible

• Charging Handle: Standard AR-15 mil-spec latch

• Lower Receiver: Forged Moriarti Arms lower with tension screw

• Lower Parts Kit (LPK): Mil-spec AR-15 parts

• Stock: Alpha 6-position mil-spec adjustable buttstock

FFL Transfer Item – This rifle must ship to a Federal Firearms License holder. Please ensure your FFL sends a signed copy referencing your order.

Whether you're upgrading your long-range setup or building your first 6MM ARC AR-style rifle, this model delivers outstanding value and performance.

Explore our collection of complete AR-15 rifles and upper assemblies for more caliber options and tactical upgrades.