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.
What parts do I need to build an AR-15?
A complete AR-15 build typically requires an upper assembly, lower receiver, lower parts, barrel, bolt carrier group, charging handle, stock or brace, buffer system, magazine, and compatible accessories. Product requirements may vary depending on your build configuration.
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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..
-228x228.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..
-228x228.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 Build 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 7" Pistol Upper Assembly / 7" M-LOK / CERAKOTE – ODG, SNIPER, FDE
Elevate your AR-15 build with the 7" Pistol Upper Assembly designed for ultimate versatility, durabi..
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AR-15 5.56/.223 7.5" COMPLETE ULTRALIGHT SERIES PISTOL KIT – Choose Your Custom Color
Ready to build your dream AR-15 pistol? The AR-15 5.56/.223 7.5" Complete Ultralight Series Pistol K..
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AR-15 5.56/.223 7.5" Pistol Upper Assembly - Titanium Blue - Fake Can
BARREL - 7.5" 5.56 NATO M4 CONTOUR 41V50 CMV BARREL, NITRIDE COATED. HEAT TREATED TO RC 28-32 A..
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AR-15 5.56/.223 7.5" Pistol Upper Assembly / Blue / Fake Suppressor
AR-15 5.56/.223 7.5" Pistol Upper Assembly / Blue / Fake Suppressor is a perfect addition to your AR..
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AR-15 5.56/.223 7.5" Pistol Upper with 7" M-LOK Handguard and Triport Muzzle Brake – 1:7 Twist, Nitride Barrel
Experience compact firepower with the AR-15 7.5" Pistol Upper Assembly, engineered for close-quarter..
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AR-15 5.56/.223 7.5" Ultralight Honeycomb Series Pistol Kit - Clear / Trident
AR-15 5.56/.223 7.5" Ultralight Honeycomb Series Pistol Kit - Clear / TridentBuild your dream AR-15 ..
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AR-15 5.56/.223 MORIARTI 7.5" M4 SEMI AUTO PISTOL / MLOK / CLASSIC
AR-15 5.56/.223 MORIARTI 7.5" M4 SEMI AUTO PISTOL / MLOK / CLASSIC . This pistol features slim ..
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AR-15 5.56/.223 MORIARTI ARMAMENTS 16" TACTICAL RIFLE / FDE / SL-K
AR-15 5.56/.223 MORIARTI ARMAMENTS 16" TACTICAL RIFLE / FDE / SL-K Made in USA by Mo..
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AR-15 5.56/.223 MORIARTI ARMAMENTS 24" SUPER VARMINTER / FDE
AR-15 5.56 MORIARTI ARMAMENTS 24" SUPER VARMINTER / FDE The super varminter all..
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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 Build Kit with Black Nitride BCG | Premium Mil-Spec Components
The AR-15 5.56/.223 Upper Receiver Build 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" M-Lok Handguard Upper Assembly, Side Charger
This AR-15 5.56/.223 Wylde 16" M-Lok Upper Assembly is built for performance and versatility. It fea..
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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..
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AR-15 5.56/.223 Wylde 16" stainless steel hbar barrel, straight fluted, 1x8
AR-15 5.56/.223 Wylde 16" stainless steel hbar barrel, straight fluted, 1x8 features: Made from ..
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AR-15 5.56/.223 WYLDE 16" stainless steel M4 barrel, 1x8 twist
AR-15 5.56/.223 WYLDE 16" stainless steel M4 barrel, 1x8 twist. Chambered in .223 WYLDE (accepts 5.5..
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AR-15 5.56/.223 Wylde 18" 416R Stainless Heavy Barrel - 1:8 Twist, Mid-Length Gas System
The AR-15 5.56/.223 Wylde 18" Heavy Barrel combines precision and durability for superior shooting p..
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AR-15 5.56/.223 Wylde 18" HBAR UPPER ASSEMBLY / QUADRAIL
An AR-15 5.56/.223 Wylde 18-inch stainless steel upper assembly with a quadrail handguard represents..
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AR-15 5.56/.223 Wylde 18" Spiral Fluted HBAR Upper | Black Claw Premium | 15" M-LOK | Competition Brake | Moriarti Arms
The AR-15 5.56/.223 Wylde 18" Black Claw Premium Upper Assembly combines accuracy, aesthetics, and d..
-228x228.webp "AR-15 5.56/.223 Wylde 18\" Stainless Tactical Rifle Kit / 15\" M-LOK / Magpul MOE Stock – Moriarti Armaments")
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AR-15 5.56/.223 Wylde 18" Stainless Tactical Rifle Kit / 15" M-LOK / Magpul MOE Stock – Moriarti Armaments
Everything you need to build a precision AR-15 rifle – minus the lower receiver. This AR-15 5.56/.22..
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AR-15 5.56/.223 Wylde 20" Black Nitride Medium Straight Fluted Barrel – 1:8 Twist, Rifle Length
Enhance your AR-15 build with this 20" Black Nitride Medium Straight Fluted Barrel designed for prec..
AR-15 6.5 Grendel 18" Nitride Barrel | 1-8 Twist, Heavy Profile, Perfect for Target & Hunting
Enhance the performance of your AR-15 with this 6.5 Grendel 18" heavy barrel, designed for precision..
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AR-15 6.5 Grendel 18" premium tactical rifle kit /15" MLOK / Afterburner / Adaptive Stock
AR-15 6.5 Grendel 18" premium tactical rifle kit /15" MLOK / Afterburner / Adaptive Stock conta..
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AR-15 6.5 Grendel 18" slim profile rifle kit / Alpha Stock / 15" Mlok
AR-15 6.5 Grendel 18" slim rail rifle kit with Alpha Stock contains all components except 80% l..
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AR-15 6.5 Grendel 24″ stainless steel premium rifle kit / Mlok
AR-15 6.5 Grendel 24″ stainless steel premium rifle kit / Mlok comes complete with a MATCH GRAD..
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AR-15 6.5 Grendel II 16" Barrel, 1x8 Twist, Stainless Steel
AR-15 6.5 Grendel II 16" Barrel, 1x8 Twist, Stainless Steel6.5 Grendel Type II416 R Stainless SteelM..
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AR-15 6.5 Grendel II 18" Hbar Barrel, 1x8 Twist, Nitride
AR-15 6.5 Grendel II 18" Barrel, 1x8 Twist, Nitride18" length6.5 Grendel Type II4150 Steel, Black Ni..
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AR-15 6.5 Grendel Type II Bolt Carrier Group – .136 Face Depth | Nitride
Upgrade your AR-15 for 6.5 Grendel Type II with this high-performance bolt carrier group (BCG), engi..
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AR-15 6.5 Grendel Type II Stripped Bolt - Precision Engineered for Performance
If you're building or upgrading a 6.5 Grendel AR platform, Moriarti Armaments offers the perfect sol..
AR-15 6.8 SPC II / .224 Valkyrie Complete Bolt Assembly | MPI Tested | 9310 Steel
Upgrade your AR-15 with the Moriarti 6.8 SPC II / .224 Valkyrie Complete Bolt Assembly, precision ma..
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AR-15 6.8 SPC II 16" Rifle Builder Kit | Quad Rail, LE Stock, USA Made – Moriarti Armaments
Build your next AR-15 with the Moriarti Armaments AR-15 6.8 SPC II 16" Rifle Builder Kit. Engineered..
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AR-15 6MM ARC 16" MLOK UPPER ASSEMBLY WITH SLIP OVER BARREL SHROUD
Perfect for your next build, this 16" MLOK Upper Assembly is designed to give your AR-15 a sleek, ve..
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AR-15 7.62x39 10.5" HBAR Barrel, Carbine Length Gas System, 1-10 Twist
The AR-15 7.62x39 10.5" HBAR Barrel is built for precision, durability, and reliability in your next..