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-47 7.62x39 16" Upper Assembly / 1:10 Twist / 15" M-LOK Free Float Rail / Carbine Length – Moriarti Arms
Upgrade your AR-15 with the stopping power of the AR-47 7.62x39 16" Upper Assembly, built for reliab..
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AR-47 7.62x39 18" Upper Assembly / 1:10 Twist / Mid-Length Gas / 15" M-LOK Free Float Rail – Moriarti Arms
For shooters looking to push the ballistic limits of the 7.62x39 cartridge, the Moriarti AR-47 18" U..
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AR-47 7.62x39 5" Nitride Slick Billet Upper Assembly | Gold Muzzle | Charging Handle
The AR-47 7.62x39 5" Nitride Slick Billet Upper Assembly is a premium addition to your AR platform, ..
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AR-47 7.62x39 Complete Bolt Carrier Group – Extended Firing Pin, MPI Tested, USA Made
Ensure flawless cycling and ignition with the AR-15 7.62x39 Complete Bolt Carrier Group—precision-en..
AR-47 7.62x39 Enhanced Firing Pin for AR-15 / Heat Treated / Steel Case Ammo Ready – Moriarti Arms
Solve light primer strike issues with steel-cased ammo using Moriarti’s AR-47 7.62x39 Enhanced Firin..
AR-47 7.62x39 Extra-Power Heavy Hammer Spring – Wolff XP Upgrade
Solve ignition issues and misfires caused by surplus or steel-case ammo with the AR-47 7.62x39 Wolff..
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AR-47 7.62x39, 7.5" Heavy Barrel, 1:10 Twist, Pistol Length | Parkerized
7.62x39, 7.5" Heavy Barrel, 1:10 Twist, Pistol Length | Parkerized. Comes with barrel extension and ..
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AR-5.56 / 9MM 24K Gold Micro Barrel Shroud & Muzzle Comp | T6 Aluminum | 1/2x28 – Moriarti Arms
Enhance the performance and appearance of your AR platform pistol with this US-made Micro Dual Purpo..
AR-74 MORIARTI 5.45x39 COMPLETE BOLT CARRIER GROUP / NITRIDE
The Moriarti Armaments AR-74 5.45x39 Complete Bolt Carrier Group (BCG) is engineered for reliability..
AR15 AIRLITE SERIES "MINIMALIST" STOCK KIT - VARIOUS COLORS
Spiral Buffer Tube6061 Aluminum Tube, and EndplateShort Textured Buttplate, Non Slip DesignExtremely..
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AR15/M4 Round Hand Guard Retainer Cap for 2-Piece Style Hand Guards – Black
The M4/M16 Round Hand Guard Retainer Cap is the ideal replacement part for damaged or lost pieces on..
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AR47 Complete Lower Receiver | MA15 7.62x39 Mil-Spec Lower | Moriarti Armaments
Complete your AR47 build with the Moriarti MA15 7.62x39 Complete Lower Receiver. Built from a durabl..
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Billet AR-15 Upper Receiver – 6061-T6 Slick Side Black
Built for clean, lightweight AR-15 configurations, this Billet AR-15 Upper Receiver is precision-mac..
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CMMG 5.7x28mm 8" Barrel & BCG Kit | Radial Delayed Blowback
The CMMG 5.7x28mm 8" Barrel and BCG Kit combines the two core CMMG components for a compatible AR-pl..
CMMG Deluxe Model Bravo .22LR Conversion Kit / Stainless Steel Bolt / No Magazine
Transform your 5.56/.223 AR-15 into a .22LR semi-automatic with the CMMG Deluxe Model Bravo .22 Conv..
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Combo Deal: AR-15 CMMG 16.1" Barrel and BCG Kit 5.7x28mm – Perfect for AR Builds
Build your custom AR-15 with the CMMG 16.1" 5.7x28mm Barrel and Bolt Carrier Group (BCG) Kit. This c..
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Combo Set: AR-22 22LR 16" Pencil Profile Barrel with Dedicated Steel BCG
Upgrade your AR-15 platform with this Combo Deal featuring a 16" Pencil Profile Barrel and a Dedicat..
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Franklin Armory BFSIII AR-ELITE Binary Trigger – Curved & Straight Trigger | 4.5 lb Pull
The Franklin Armory BFSIII AR-ELITE Binary Firing System is a premium AR-platform trigger system fea..
Franklin Armory BFSIII Elite Libertas Multi-Caliber Complete AR-15 Lower – Binary Trigger | B5 SOPMOD
The Franklin Armory BFSIII Elite Libertas Lower Receiver is a factory-configured complete AR-15 lowe..
Franklin Armory BFSIII Elite Salus Multi-Caliber Complete AR-15 Pistol Lower – Elite Binary Trigger | SBM4 Brace
The Franklin Armory BFSIII Elite Salus Lower Receiver is a factory-configured complete AR-15 pistol ..
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Franklin Armory BFSIII M4 Built Multi-Caliber Complete AR-15 Lower – AR-Essential Binary Trigger | A2 Stock
The Franklin Armory BFSIII M4 Built Lower Receiver is a factory-configured complete AR-15 lower feat..
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Franklin Armory BFSIII M4 Built Pistol Lower – AR-Essential Binary Trigger | SBM4 Brace
The Franklin Armory BFSIII M4 Built Pistol Lower Receiver is a factory-configured complete AR-15 pis..
Franklin Armory FAI-15 Multi-Caliber Stripped AR-15 Lower Receiver
The Franklin Armory FAI-15 Stripped Lower Receiver provides a forged foundation for compatible AR-15..
Gear Head Works Tailhook Mod 2C AR-15 Pistol Brace Kit
The Tailhook MOD2C Gear Head Works Kit in Black is a premium pistol stabilizing brace system built f..
Geissele SSA-E Trigger | 2-Stage, 3.5lb Pull, Precision Rifle Upgrade
The Geissele Automatics Super Semi-Automatic Enhanced Trigger (SSA-E) is engineered to offer superi..
-228x228.webp "Geissele Super Dynamic Enhanced SD-E Trigger | 2-Stage, 3.5lb Pull")
Geissele Super Dynamic Enhanced SD-E Trigger | 2-Stage, 3.5lb Pull
The Geissele Super Dynamic Enhanced (SD-E) Trigger is a top-tier two-stage trigger designed to provi..
Kaw Valley Precision AR-15/AR-10 Gas Block Dimpling Jig - .750 | 6 Position Adjustable Dimple Tool
The Kaw Valley Precision AR-15/AR-10 Gas Block Dimpling Jig is an essential tool for any builder or ..
Kaw Valley Precision Linear Comp | 5.56/30CAL/45CAL/9MM | Reduces Muzzle Concussion
Enhance your shooting experience with the Kaw Valley Precision Linear Comp, designed to effectively ..
Law Tactical AR Folding Stock Adapter Gen S - Black / FDE
The Law Tactical Folding Stock Adapter is designed to be compatible with a wide range of AR-15 and A..
M16 5.56/.223 Nickel Boron Complete Mil Spec Bolt Carrier Group
M16 5.56/.223 Nickel Boron Complete Bolt Carrier Group. Comes completley assembled, properly st..
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MA-15 .223 Wylde 18" Stainless Semi-Auto Sport Rifle / M-lok / Mag
PRODUCT DESCRIPTIONMoriarti Armaments, Semi-automatic Rifle, .223 Wylde (shoots both, 5.56 NATO and ..
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MA-15 5.56/.223 16" AIRLIGHT SERIES RIFLE BUILD KIT / EHNANCED / CHROME
THIS RIFLE KIT CONTAINS ALL THE COMPONENTS TO COMPLETE YOUR AR-15 PROJECT, EXCEPT 80% LOWER RECEIVER..
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MA-15 MORIARTI .224 VALKYRIE 20″ STAINLESS STEEL SEMI AUTO RIFLE / MLOK
MA-15 MORIARTI .224 VALKYRIE 20″ STAINLESS STEEL SEMI AUTO RIFLE / MLOKThe Moriarti Armaments A..
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MA-15 MORIARTI .50 Beowulf 12.7X42 10.5" SEMI-AUTO PISTOL | SBA3
AR-15 MORIARTI .50 Beowulf 12.7X42 10.5" SEMI-AUTO PISTOL | SBA3. This AR Pistol features slick..
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MA-15 MORIARTI LOWER RECEIVER COMPLETE W/6-POS MIL-SPEC STOCK
Moriarti Armaments AR-15 Lower, Complete Lower Receiver, Semi-automatic, Multi Cal, Black Finish, 6 ..
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MA-47 7.62X39 18" SURGE SEMI AUTO RIFLE / ENHANCED / MAG
MA-47 7.62X39 18" SURGE SEMI AUTO RIFLE / MLOK. Made to mil-spec tolerances. Must be shipped t..
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MA-47 7.62x39 7.5" M-LOK Pistol w/ FDE SBA3 Brace | Compact & Versatile | Made in USA
The MA-15 7.62x39 AR-47 7.5" M-LOK Pistol is a compact powerhouse designed for high performance and ..
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MA-47 7.62x39 7.5" M-LOK Pistol | Shroud & SBA3 Brace | Tactical Power & Precision
Upgrade your collection with the MA-15 7.62x39 AR-47 7.5" M-LOK Pistol with Krinkov Style Shroud and..
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MA15 Moriarti Armaments Complete Lower Receiver with Magpul MOE Edition - Black
The MA15 Moriarti Armaments Complete Lower Receiver with Magpul MOE Edition is the perfect foundatio..
MA15 Moriarti Armaments Complete Lower Receiver, Semi-Automatic, Multi-Caliber, SL Carbine Stock - Black, FDE, or OD Green
The MA15 Moriarti Armaments Complete Lower Receiver is the ideal foundation for your next AR-15 buil..
MAGPUL MOE FIXED STK MIL-SPEC - CHOOSE COLOR
Product DescriptionThe MOE Fixed Carbine Stock - Mil-Spec Model (Magpul Original Equipment) provides..
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MORIARTI .450 BUSHMASTER 16" SEMI AUTO RIFLE | MAGPUL MOE
MORIARTI .450 BUSHMASTER 16" SEMI AUTO RIFLE | MAGPUL MOE. This AR rifle features a forged alum..
Moriarti 9mm / 22LR / .40/ 10MM/ 45ACP Slick Side Upper Receiver – No Forward Assist
The Moriarti 9mm / 22LR / .40/10MM/45ACP Slick Side Upper Receiver is a high-quality, forged 7075-T6..
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Moriarti AR-15 .338 ARC 12.5" Upper Assembly | M-LOK | Thread Protector
The Moriarti AR-15 .338 ARC 12.5" Upper Assembly delivers the perfect balance of compact maneuverabi..
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Moriarti AR-15 .458 SOCOM 16" Upper Assembly | MLOK Rail | FDE
The AR-15 .458 SOCOM 16" Black Upper Assembly offers powerful performance with a sleek design, perfe..
-228x228.webp "Moriarti AR-15 .458 SOCOM 16\" Upper Build – Slim M-LOK, Tanker Muzzle Brake, Big Bore")
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Moriarti AR-15 .458 SOCOM 16" Upper Build – Slim M-LOK, Tanker Muzzle Brake, Big Bore
The AR-15 .458 SOCOM 16" Upper Build delivers powerful big-bore performance in a sleek, tactical pac..
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Moriarti AR-15 .50 Beowulf 10.5" Upper Build | 10" Slim Rail | Linear Compensator
Moriarti AR-15 .50 Beowulf 10.5" Upper Build is designed for those looking to build a powerful .50 B..
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Moriarti AR-15 .50 Beowulf 16" Complete Upper Assembly | M-LOK | Heavy Barrel | Big Bore AR Upper
The Moriarti AR-15 .50 Beowulf 16" Complete Upper is designed for shooters who want maximum big-bore..
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MORIARTI AR-15 16" 12.7x42 (.50 Beowulf) Rifle Kit - Choose Your Color
FDE, BB, ODGREEN, or BLACK – The ultimate big-bore rifle kit for enthusiasts and tactical shooters a..
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Moriarti AR-15 16" 300AAC Blackout MA-300 Semi-Auto Rifle with Mag
The Moriarti MA-300 AR-15 rifle chambered in 300AAC Blackout is a reliable and versatile firearm pla..