AR-15 Parts, Rifles, Uppers & Accessories
AR-15 Rifles, Kits & Gun Accessories
Welcome to the AR-15 hub at Moriarti Armaments—your one-stop destination for AR-15 rifles, pistols, upper assemblies, complete lowers, parts, kits, barrels, triggers, handguards, magazines, optics, and accessories. Whether you're building a custom rifle, upgrading an existing firearm, or replacing worn components, you'll find quality products engineered for reliability and performance. Browse complete AR-15 solutions and individual components for popular calibers including 5.56 NATO, .223 Wylde, 300 AAC Blackout, 7.62x39, 6.5 Grendel, 6MM ARC, .224 Valkyrie, .350 Legend, .400 Legend, .450 Bushmaster, .458 SOCOM, .50 Beowulf, 12.7x42, and more.
Why is the AR-15 platform so popular?
The AR-15 platform is popular because of its modular design, broad parts availability, caliber selection, and ability to support many different configurations. AR-15-style firearms can be configured for cartridges including 5.56 NATO/.223 Remington, 300 Blackout, 6.5 Grendel, 6.8 SPC II, 7.62x39, .350 Legend, .400 Legend, .450 Bushmaster, .50 Beowulf/12.7x42, and .338 ARC, depending on the components used. Shooters can also choose among different barrel lengths, handguards, stocks or pistol configurations, triggers, optics, and finishes.
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AR-15 7.62x39 16" Multi-Port Shroud Upper – Slick-Side, 15" M-LOK, Choose Color
The Moriarti AR-15 7.62x39 16" Upper Assembly combines a heavy-profile 4150 Chrome Moly Vanadium bar..
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AR-15 7.62x39 16" Side-Charging Complete Upper – 12" Moriarti M-LOK, A2 Flash Hider
The Moriarti AR-15 7.62x39 16" Side-Charging Complete Upper Assembly features a 16-inch chrome-lined..
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AR-15 7.62x39 16" Stainless Bear Claw Upper / Spiral Fluted Barrel / M-LOK / Triport Muzzle – Moriarti Arms
Push your AR-47 platform further with the Moriarti Arms 16" Stainless Bear Claw Premium Upper. Engin..
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AR-15 7.62x39 7.5" Krinkov Style Slim Nitride Pistol Upper Assembly / M-LOK – Moriarti Arms
Enhance your AR-15 pistol with the 7.62x39 7.5" Krinkov Style Slim Nitride Pistol Upper Assembly by ..
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AR-15 7.62X39 7.5" PISTOL KIT - SIDE CUT BILLET UPPER WITH 7" HANDGUARD - SHOCKWAVE - CERAKOTE CAMO
AR-15 7.62X39 7.5" PISTOL KIT - SIDE CUT BILLET UPPER WITH 7" HANDGUARD - SHOCKWAVE - CERAKOTE CAMOA..
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AR-15 7.62x39 7.5" Pistol Parts Kit / Mlok / SBA3 / No Lower
AR-15 7.62x39 7.5" Pistol Parts Kit / Mlok / SBA3 / Shortie contains all components to complete..
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AR-15 7.62x39 7.5" Slim Nitride Upper Assembly with Cerakote – FDE, ODG, Grey
Upgrade your AR-15 with the 7.62x39 7.5" Slim Nitride Upper Assembly, now available with your choice..
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AR-15 7.62x39 7.5" Tactical Pistol Kit – 7" M-LOK Rail, BCG & LPK Included, USA Made
The AR-15 7.62x39 7.5" Tactical Pistol Kit is your ready-to-build solution for launching a compact, ..
AR-15 7.62x39 Complete Bolt Assembly – 9310 Steel | MPI Tested
Upgrade or replace the bolt in your 7.62x39 AR-15 / AR-47 with this complete, ready-to-install 7.62x..
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AR-15 7.62×39 16" Barrett-Style Lightweight Upper – 15" FDE M-LOK
The Moriarti AR-15 7.62×39 16" Barrett-Style Upper Assembly combines a 16-inch 4150 Chrome Moly Vana..
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AR-15 8.5" 5.56 NATO SOCOM Series Kit – 9" M-LOK
The Moriarti SOCOM Series is an AR-15 component kit chambered in 5.56 NATO, featuring an 8.5-inch M4..
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AR-15 80% Lower Receiver - 4th of July Limited Edition - Life Liberty Engraving
This Anodized 80% Lower Receiver comes with a limited time 4th of July graphic of your choice engrav..
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AR-15 80% Lower Receiver - Choose Color | Cerakote | 7075-T6 Forged Receiver
This AR-15 80% lower receiver is crafted from 7075-T6 aluminum forgings and finished in a durable Tu..
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AR-15 A2 MIL-SPEC STYLE PISTOL GRIP
An A2-style AR-15 pistol grip made from high-density polymer to mil-spec dimensions. It is the class..
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AR-15 A2 Rifle Buffer Spring – Full Length, Steel, Made in USA
This AR-15 A2 Rifle Buffer Spring is designed for use with full-size, fixed rifle stock systems. Man..
AR-15 AMBI CHARGING HANDLE LATCH
An ambidextrous latch for any mil-spec AR-15 charging handle. It lets left- and right-handed shooter..
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AR-15 AMBIDEXTROUS CHARGING HANDLE / ALUMINUM BLACK
An ambidextrous AR-15 charging handle in black. It is made from mil-spec 6061-T6 aircraft aluminum w..
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AR-15 AMBIDEXTROUS CHARGING HANDLE / ALUMINUM BLACK / PINK LATCH
AR-15 AMBIDEXTROUS CHARGING HANDLE / ALUMINUM BLACK AND PINKFinish: Type III hard-coat anodizedPerfe..
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AR-15 AMBIDEXTROUS CHARGING HANDLE / ALUMINUM BLACK / SPIDER
Upgrade your rifle with the AR-15 Ambidextrous Charging Handle, engineered for smooth operation from..
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AR-15 Anodized 80% Lower Receiver – MIL-SPEC 7075-T6 Forging
Moriarti's anodized AR-15 80% lower receivers are designed with the DIY gunsmith in mind. Constructe..
AR-15 Anodized Charging Handle with Factory Latch - Choose Color
The Moriarti AR-15 anodized charging handle is a direct replacement for the factory part. It is mach..
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AR-15 AR-15 Lower Parts Kit / Cerakote RED
AR-15 AR-15 Lower Parts Kit / Cerakote RED - Moriarti Armaments' AR-15 Lower Parts Kit elevates..
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AR-15 Barrett Style "Tanker" Muzzle Brake | Extended Length | Cerakote Camo FDE, Red, or Pink
Elevate your AR-15's performance with the Barrett Style "Tanker" Extended Length Muzzle Brake, desig..
AR-15 Billet Upper Receiver with Dust Cover & Forward Assist - Flat Dark Earth
Enhance your AR-15 build with this Billet Upper Receiver featuring a Cerakote Flat Dark Earth finish..