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 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..
-456x456.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
A 16" 6.5 Grendel Type II AR-15 barrel in 416R stainless steel with a 1:8 twist. It has M4 feed ramp..
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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 7.5" Pistol Upper Assembly | Choose Caliber | Gradient Cerakote Finish | Premium Performance
Elevate your AR-15 build with this 7.5" Pistol Upper Assembly designed for both style and functional..
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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..
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AR-15 7.62x39 10.5" Pistol Upper – 7" Fake Can, 1:10 Twist, 10" M-LOK
The Moriarti Arms 7.62x39 AR-15 10.5" Pistol Upper Assembly is a rugged, USA-made upgrade designed f..
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AR-15 7.62x39 16" Burnt Bronze Upper | M-LOK Handguard | Moriarti Arms
Unleash the performance of the 7.62x39mm cartridge in your AR-15 platform with the Moriarti Arms® AR..
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AR-15 7.62x39 16" Elite Upper | Blue Titanium Cerakote | 1:10 Twist | 15" M-LOK | Moriarti Arms
The AR-15 7.62x39 Elite 16" Upper in Blue Titanium Cerakote is a striking and rugged option for buil..
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AR-15 7.62X39 16" HBAR BARREL, NITRIDE, 1X10
Upgrade your AR-15 build with the AR-15 7.62x39 16" HBAR Barrel. Crafted from 4150 Chrome Moly Vanad..
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AR-15 7.62x39 16" Lightweight Blue Upper Assembly with Triport Muzzle Brake
The Moriarti AR-15 7.62x39 16" Lightweight Blue Upper Assembly features a 16-inch 4150 Chrome Moly V..