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 5.56/.223 16" MINIMALIST SERIES RIFLE KIT / PURPLE ACCENTS / 15" MLOK
AR-15 5.56/.223 16" MINIMALIST SERIES RIFLE KIT / PURPLE ACCENTS / 15" MLOK INCLUDES:Barrel: ·&nb..
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AR-15 5.56/.223 16″ Straight Flute Barrel – 1:8 Twist, Nitride, .223 Wylde
The AR-15 16″ Straight Flute Barrel is designed for precision and durability. Machined from 4150 CMV..
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AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly / Mlok / Triport Brake
Elevate your AR-15 build with the AR-15 5.56/.223 17.1" Pentagon Black Nitride Upper Assembly. This ..
AR-15 5.56/.223 18" RED DIAMOND FLUTED HEAVY BARREL / SS / 1:8 TWIST
AR-15 5.56/.223 18" RED DIAMOND FLUTED HEAVY BARREL / SS / 1:8 TWIST - PRODUCTION ETA 3-4 WEEKS16" H..
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AR-15 5.56/.223 18" Stainless Steel Diamond Fluted Upper | 1:8 Twist | 15" M-LOK | Moriarti Arms
The AR-15 5.56/.223 18" Stainless Steel Diamond Fluted Upper Assembly is designed for marksmen who d..
-456x456.webp "AR-15 5.56/.223 18\" Stainless Steel Spiral Fluted Upper Assembly / Mlok Rail")
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AR-15 5.56/.223 18" Stainless Steel Spiral Fluted Upper Assembly / Mlok Rail
The AR-15 5.56/.223 18" Stainless Steel Spiral Fluted Upper Assembly with Mlok rail offers precision..
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AR-15 5.56/.223 20" Black Diamond Competition Upper Assembly – MLOK / Triport Muzzle Brake
You asked, and we listened. Introducing the limited edition AR-15 5.56/.223 20" Black Diamond Compet..
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AR-15 5.56/.223 20" Nitride Fluted Rifle Kit / 15" Mlok / A2 / Adaptive Stock
AR-15 5.56/.223 Wylde 20" Nitride Fluted Rifle Kit / 15" Mlok /Adaptive Stock. The kit comes WITHOUT..
-456x456.webp "AR-15 5.56/.223 20\" RIFLE NITRIDE RIFLE KIT /15\" MLOK /LE STOCK")
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AR-15 5.56/.223 20" RIFLE NITRIDE RIFLE KIT /15" MLOK /LE STOCK
AR-15 5.56/.223 20" RIFLE NITRIDE RIFLE KIT /15" MLOK /LE STOCK unassembled Rifle Parts Kit Includes..
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AR-15 5.56/.223 20" STAINLESS STEEL BLACK CLAW UPPER ASSEMBLY / MLOK / TRI
Upgrade your AR-15 build with the AR-15 5.56/.223 20" Stainless Steel Black Claw Upper Assembly / ML..
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AR-15 5.56/.223 20" stainless steel diamond fluted tactical upper assembly
The AR-15 5.56/.223 20 Stainless Steel Diamond Fluted Tactical Upper Assembly is a key component to ..
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AR-15 5.56/.223 20" Stainless Steel Spiral Fluted Tactical Upper Assembly with M-LOK Rail
Enhance your AR-15 build with the 5.56/.223 20" Stainless Steel Spiral Fluted Tactical Upper Assembl..
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AR-15 5.56/.223 20" Stainless Steel Straight Fluted Upper Assembly / Mlok
AR-15 5.56/.223 20" stainless steel straight fluted tactical upper assembly. We now make these upper..
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AR-15 5.56/.223 20" Stainless Steel Tactical Upper Assembly | M-LOK | Triport Muzzle Brake
Enhance your AR-15 build with the 20" Stainless Steel Tactical Upper Assembly designed for precision..
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AR-15 5.56/.223 20" STAINLESS TACTICAL RIFLE KIT / MAGPUL / 15" MLOK
AR-15 .223 5.56 20" stainless moe premium tactical rifle kit- contains all components to complete yo..
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AR-15 5.56/.223 20" Straight Fluted Stainless Upper Assembly - Left Hand
Product Features: Barrel: 20" 416R stainless steel HBAR contour barrel. Hardened to 26-32..
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AR-15 5.56/.223 24" Black Nitride Spiral Bull Upper Assembly / Mlok
Maximize Precision with the AR-15 5.56/.223 24" Black Nitride Spiral Bull Upper AssemblyElevate your..
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AR-15 5.56/.223 24" premium tactical rifle kit / 15" mlok / target crown
AR-15 5.56/.223 24" premium tactical rifle kit w/ 15" slim mlok contains all components to complete ..
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AR-15 5.56/.223 24" stainless steel fluted bull upper assembly / Mlok
AR-15 5.56/.223 24" stainless steel fluted bull upper assembly includes: Barrel - 24" 416 stainless ..
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AR-15 5.56/.223 Steel Crush Washers | Pack of 10 | 1/2"x28 Thread | Phosphate Finish
Ensure a secure fit for your AR-15 muzzle devices with this Pack of 10 AR-15 5.56/.223 Crush Washers..
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AR-15 5.56/.223 Upper Receiver Parts Kit with Black Nitride BCG | Premium Mil-Spec Components
The AR-15 5.56/.223 Upper Receiver Parts Kit with Black Nitride BCG is the ultimate solution for any..
AR-15 5.56/.223 Wylde 16" / 1:8 / STAINLESS STEEL / BEAR CLAW
AR-15 5.56/.223 Wylde 16" / 1:8 / STAINLESS STEEL / BEAR CLAW CHAMBER .223 Wylde ..
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AR-15 5.56/.223 Wylde 16" Stainless Black Claw Premium Upper Assembly – MLOK
The AR-15 5.56/.223 Wylde 16" Stainless Black Claw Premium Upper Assembly is engineered for performa..
AR-15 5.56/.223 WYLDE 16" stainless steel barrel, spiral fluted, 1x8
AR-15 5.56/.223 WYLDE 16" stainless steel barrel, spiral fluted, 1x8. Comes with barrel extension an..