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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300 AAC Blackout 16" Complete AR-15 Upper Assembly with CLAW Muzzle Brake | Moriarti Armaments
16 Inch 300 Blackout Upper – AR-15 300 AAC Blackout 16" Carbine CLAW Upper AssemblyUpgrade your AR-1..
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300 AAC Blackout 16" Complete AR-15 Upper Assembly – Black Canon Edition | Moriarti Armaments
300 Blackout 16 Inch Complete AR-15 Upper Assembly – Black Canon Edition | Moriarti ArmamentsExperie..
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5" 300 Blackout Upper Assembly – AR-15 Pistol Upper with American Flag Engraving & Shark Muzzle Brake | Moriarti Armaments
Upgrade your AR-15 platform with the Moriarti 5 Inch 300 Blackout Upper Assembly, designed for shoot..
5" 5.7x28 AR-15 Complete Upper – 4" M-LOK | BCG & CH Included
Go ultra-compact with the Moriarti 5" 5.7x28 AR-15 Complete Upper, designed for a compact 5.7x28 AR ..
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AR 5.56 Cal Aluminum 30 Rnd Mag With Anti-Tilt Follower - Gold Plated
Specifications: Caliber: 223 Remington / 5.56 NATO / 300 Blackout Capacity: 30 Rounds..
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AR-15 .22 LR 16" Rifle Kit – CMMG Compatible | M-LOK | Choose Color
Build a dedicated rimfire AR with the Moriarti AR-15 .22 LR 16" Rifle Kit, featuring a lightweight p..
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AR-15 .300 Blackout 5" Micro Mini Pistol | Red Accents & Honey Badger Brace
The AR-15 MORIARTI .300 Blackout 5" Semi Auto Pistol offers a compact, high-performance package tail..
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AR-15 .300 Blackout 5" Micro Pistol Kit / 1:7 Twist / Micro Buffer / 4" M-LOK Rail
The Moriarti AR-15 .300 AAC Blackout 5" Micro Pistol Kit is a compact and powerful option for shoote..
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AR-15 .338 ARC 7.5" Pistol Build Kit | Black Nitride | Classic
Looking to build a .338 ARC AR-15 Pistol? Moriarti Armaments offers you the perfect base for your cu..
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AR-15 .338 ARC 7.5" Pistol Upper Assembly / Mlok Free Float
Upgrade your AR-15 pistol with the .338 ARC 7.5" Pistol Upper Assembly for unmatched power and perfo..
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AR-15 .350 Legend 10" Tactical Upper Assembly | M-Lok Handguard | Cerakote Color Options | 1:16 Twist | 5/8x24 Thread
Upgrade your AR-15 with the Moriarti Armaments .350 Legend 10" Tactical Upper Assembly, now availabl..
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AR-15 .350 Legend 10.5" Mlok Tactical Upper Assembly | Carbine-Length Gas System | A2 Flash Hider
Upgrade your AR-15 with the Moriarti Armaments .350 Legend 10.5" Mlok Tactical Upper Assembly and ta..
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AR-15 .350 Legend 10.5" Pistol Kit | SBA3 Brace | 10" M-LOK Rail
If you're looking for the perfect .350 Legend AR-15 pistol build, look no further than the 10.5" Pis..
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AR-15 .350 Legend 18" Rifle Kit | M-LOK | Hunting Configuration
Built for hunters looking for a longer-barreled .350 Legend AR-15 rifle configuration, this Moriarti..
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AR-15 .400 Legend 16" Rifle Kit | 1:16 Twist | Quad Rail | LE Stock
Built for shooters looking for a .400 Legend AR-15 rifle configuration, this Moriarti 16" .400 Legen..
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AR-15 .400 Legend 18" Rifle Kit | 1:16 Twist | Mlok | 6.5 Grendel BCG
Built for hunters and shooters looking for a longer-barreled .400 Legend AR-15 rifle configuration, ..
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AR-15 .450 Bushmaster 10.5" Pistol Upper Assembly / Tanker
Upgrade your AR-15 pistol with the AR-15 .450 Bushmaster 10.5" Pistol Upper Assembly featuring a tan..
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AR-15 .450 Bushmaster 10.5" Thumper Pistol Upper Assembly / Mlok – Powerful Upgrade for Your AR-15 Pistol
Elevate your AR-15 pistol with the .450 Bushmaster 10.5" Thumper Pistol Upper Assembly, designed for..
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AR-15 .458 SOCOM 10.5" Faxon Gunner Upper Build / MLOK / Magnum Comp | Big Bore Performance
The AR-15 .458 SOCOM 10.5" Faxon Gunner Upper Build offers exceptional big-bore performance in a com..
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AR-15 .458 SOCOM 10.5" Pistol Upper Assembly w/ 10" Free Float Rail | Big Bore Power
The AR-15 .458 SOCOM 10.5" Pistol Upper Assembly offers compact power and big-bore performance, perf..
AR-15 15" HONEYCOMB SERIES Complete Furniture Set | M-LOK | Anodized Finish | Choose Color
The AR-15 HONEYCOMB SERIES Complete Furniture Set is crafted for precision, lightweight performance,..
AR-15 15" ULTRALIGHT SERIES Furniture Set | Lightweight, Durable & Available in Black Chrome & Chrome
The AR-15 15" ULTRALIGHT SERIES COMPLETE FURNITURE SET offers the perfect blend of lightweight desig..
AR-15 15" ULTRALIGHT SERIES PVD Coated Furniture Set | Lightweight, Durable & Premium Finish
The AR-15 15" ULTRALIGHT SERIES COMPLETE FURNITURE SET with a PVD coated finish offers an unmatched ..
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AR-15 16" 6mm ARC Rifle Kit - Choose Color, Quadrail | Made in the USA | Moriarti Armaments
Build your perfect AR-15 with the 16" 6mm ARC Rifle Kit from Moriarti Armaments. This high-performan..
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AR-15 16" Left Hand Slick Design Upper Assembly with 12" Mlok and A2 - Choose Caliber
AR-15 16" Left Hand Slick Design Upper Assembly with 12" Mlok and A2 flash hider is an upper fo..
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AR-15 300 Blackout 10.5" Complete Upper Assembly | Diamond Cut M-LOK | Burnt Bronze Cerakote | Moriarti Armaments
Upgrade your AR platform with the Moriarti AR-15 300 Blackout 10.5" Complete Upper Assembly, enginee..
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AR-15 300 Blackout 16" Med Profile Black Shark Upper Assembly / Mlok
16 Inch 300 Blackout AR-15 Upper Assembly – Black Shark EditionThe Moriarti 16 Inch 300 Blackout Upp..
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AR-15 300 Blackout 5" Centurion Upper Assembly / MLOK – Choose Handguard Color
Unleash compact performance with the Moriarti 5 Inch 300 Blackout Pistol Upper Assembly – Centurion ..
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AR-15 300 Blackout 5" Micro Upper Assembly / Sound Forwarder / Mlok / 1x7
Upgrade your AR-15 build with this 300 Blackout 5" Nitride Upper Assembly from Moriarti Armaments, d..
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AR-15 300 Blackout 5" PISTOL BILLET UPPER / 4'' MLOK / GOLD MUZZLE / CH
AR-15 300 Blackout 5" PISTOL BILLET UPPER / 4'' MLOK / GOLD MUZZLE BRAKE FEATURES:300 Blackout 5 Inc..
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AR-15 300 BLACKOUT 5" PISTOL KIT - SIDE CUT BILLET UPPER WITH 4" HANDGUARD - MICRO - CERAKOTE CAMO BURNT BRONZE
Unleash your full potential with the AR-15 300 Blackout 5" Pistol Kit, designed for ultimate precisi..
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AR-15 300 Blackout 5" Shark Pistol Kit - Side Cut Billet Upper with 4" Handguard - Classic Mini
AR-15 300 Blackout 5" Shark Pistol Kit - Side Cut Billet Upper with 4" Handguard - Classic Mini Unl..
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AR-15 300 BLACKOUT 5" SPIDER PISTOL KIT - FORGED UPPER WITH 4" HANDGUARD - COLOR SET
AR-15 300 BLACKOUT 5" SPIDER PISTOL KIT - FORGED UPPER WITH 4" HANDGUARD - COLOR SETBuild Your Own H..
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AR-15 300 BLACKOUT 5'' PISTOL BILLET UPPER / CH / 4'' MLOK / STAY SPOOKY- COLOR SET
Moriarti Armaments introduces the Stay Spooky 300 Blackout Pistol Upper, a compact, lightweight, and..
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AR-15 300 Blackout 5'' Pistol Kit - Side Cut Billet Upper, 4'' Super Slim Handguard, 'Stay Spooky' Skull Dust Cover - Color Set Options
AR-15 300 Blackout 5'' Pistol Kit - Side Cut Billet Upper, 4'' Super Slim Handguard, 'Stay Spooky' S..
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AR-15 300 BLK 5" Pistol Hybrid Upper Assembly, Spitfire Muzzle, Mlok Handguard, Zombie Green – Moriarti Arms
Elevate your build with the AR-15 300 BLK 5" Pistol Hybrid Upper Assembly in Zombie Green, precision..
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AR-15 300 BLK 5" Pistol Upper Assembly - Gold Spitfire / Mlok
Unleash precision, power, and performance with the AR-15 300 Blackout 5" Pistol Upper Assembly featu..
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AR-15 300 BLK 5'' PISTOL KIT - BILLET UPPER / 4'' HANDGUARD / CERAKOTE SPLATTER - CHOOSE COLOR
AVAILABLE IN PINK, TIFFANY BLUE, WHITE, RED AND ORANGE. CHOOSE YOUR PREFERENCE ON TOP OF PAGE.KIT IN..
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AR-15 300AAC Blackout Moriarti Arms 5" Semi Auto Mini Pistol | Honey Badger PDW Brace | Shroud
Introducing the AR-15 300AAC Blackout Moriarti Arms 5" Semi Auto Mini Pistol, built for those seekin..
-228x228.webp "AR-15 350 Legend 7.5\" Mlok Upper Assembly with Shroud and Mlok")
-228x228.webp "AR-15 350 Legend 7.5\" Mlok Upper Assembly with Shroud and Mlok")
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AR-15 350 Legend 7.5" Mlok Upper Assembly with Shroud and Mlok
Key Features:Barrel:7.5″ Barrel chambered in 350 Legend, perfect for short-barrel applications.4150 ..
AR-15 4" AIR-LOK Series M-LOK Compression Free Floating Handguard with Monolithic Top Rail – Multiple Anodized Colors Available
The 4" AIR-LOK Series M-LOK Compression Free Floating Handguard for AR-15 combines cutting-edge desi..
-228x228.webp "AR-15 4\" Parallelogram M-LOK Handguard - Choose Color, Aircraft Grade 6061 Aluminum")
-228x228.webp "AR-15 4\" Parallelogram M-LOK Handguard - Choose Color, Aircraft Grade 6061 Aluminum")
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AR-15 4" Parallelogram M-LOK Handguard - Choose Color, Aircraft Grade 6061 Aluminum
The AR-15 4" Parallelogram M-LOK Handguard - Choose Color, Aircraft Grade 6061 Aluminum is built for..
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AR-15 4.5" .22LR Dedicated Upper Assembly with M-LOK Handguard & Flash Can Comp
The 4.5" .22LR Dedicated Upper Receiver from Moriarti Armaments is the perfect upgrade for your AR-1..
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AR-15 4.5" Micro APR Suppressor Ready Pistol Upper Assembly – Choose Caliber & Color
The AR-15 4.5" Micro APR Suppressor Ready Pistol Upper Assembly is a compact, high-performance upper..
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AR-15 4.5" Micro ARP Pistol Upper Assembly / Mini Can - Caliber Choice
The AR-15 4.5" Micro ARP Pistol Upper Assembly with Mini Can - Caliber Choice is designed to de..
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AR-15 5" Pistol Upper Assembly | Suppressor Ready | Choose Caliber & Color
Unlock precision, power, and reliability with the AR-15 5" Pistol Upper Assembly, equipped with M-LO..
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AR-15 5.56 5" Moriarti Minimalist Series Semi Auto Pistol | HBPDW
AR-15 5.56 5" Moriarti Minimalist Series Semi Auto Pistol wit HBPDW Adjustable Brace and Shroud. FFL..
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AR-15 5.56 5" Moriarti Minimalist Series Semi-Auto Pistol | HBPDW | OD Green
The AR-15 5.56 5" Moriarti Minimalist Series Semi-Auto Pistol in OD Green combines sleek aesthetics ..
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AR-15 5.56 NATO 14.5" Rifle Kit with 10" Quadrail | Choose Your Color | Precision Custom Build
The AR-15 5.56 NATO 14.5" Rifle Kit with a 10" Quadrail offers the ultimate precision and reliabilit..
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AR-15 5.56 NATO 16" Carbine Upper Assembly with 15" M-LOK Handguard | CERAKOTE GRAD Colors | Tactical Charging Handle
Build your dream AR-15 with the Moriarti Arms® 5.56 NATO 16" Carbine Upper Assembly, designed for pe..