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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Timney AR-15 Comp Straight 3lb Trigger | Drop-In Design, Small Pin - Black
The Timney AR-15 Comp Straight 3lb Trigger is designed to deliver superior performance with a solid,..
AR-15 Extended Ergonomic Bolt Catch - Black, Steel Construction
Enhance your AR-15's performance with the Extended Ergonomic Bolt Catch. Crafted from steel, this bo..
Aero Precision AR15 Lower Parts Kit - No Fire Control Group
The Aero AR15 Lower Parts Kit is designed to provide all the critical components necessary to comple..
-70%
AR-15 Aluminum Standard Trigger Guard Assembly - Black
This AR-15 Aluminum Standard Trigger Guard Assembly is the perfect upgrade for your Mil-Spec AR-15 l..
CMMG Lower Receiver Parts Kit 556 - Complete AR-15 Kit
The CMMG Lower Receiver Parts Kit 556 includes all the essential components for building or repairin..
AR-15/AR-10 Extended Mag Button - Lightweight T6 Aluminum | Multiple Colors
Upgrade your rifle with the AR-15/AR-10 Extended Mag Button made from T6 aluminum for lightweight du..
-33%
AR-15 5.56 NATO 10.5" Upper Assembly in OD Green with Mlok Handguard and Shroud – Moriarti Arms
Built for performance and style, the MORIARTI AR-15 5.56 NATO 10.5" MLOK Upper Assembly in OD Green ..
-40%
AR-15 5.56/.223 10.5" Mlok Upper Assembly / Green Accents
AR-15 5.56/.223 10.5" Mlok Upper Assembly / Green Accents Features:Chamber - 5.56/.223 WYLDEBar..
-31%
AR-15 .400 Legend 7.5" Pistol Build Kit | Black Nitride | Classic
Looking to build a .400 Legend AR-15 Pistol? Moriarti Armaments offers you the perfect base for your..
AR-15 .450 Bushmaster 7.5" Pistol Build Kit | A2 Flash Hider | Classic
Looking to build a .450 Bushmaster AR-15 Pistol? The 7.5" Pistol Build Kit from Moriarti Armaments g..
AR-15 .450 Bushmaster 7.5" Pistol Upper Assembly / Mlok Free Float
AR-15 .450 Bushmaster 7.5" Pistol Upper Assembly / Mlok Free Float – Compact, Powerful, and Ready fo..
-36%
AR-15 300 BLK 5" Complete Compression Series Micro Pistol Kit – Customize Your Build with Your Personal Color
AR-15 300 BLK 5" Complete Compression Series Micro Pistol Kit – Customize Your Build Make it fun. M..
-20%
AR-15 5" 5.56 NATO Micro Semi Auto Pistol | The Chameleon | Purple & Rainbow PVD Accents
The AR-15 5" 5.56 NATO Micro Semi Auto Pistol | The Chameleon combines performance and unique aesthe..
AR-15 5.5" 5.56mm 1:5 Twist Barrel with Rainbow PVD Coating | 4150 Chromoly Steel | Micro Pistol Gas System
When it comes to building or upgrading your AR-15, every component matters, especially your barrel. ..
AR-15 5.56/.223 16" M4 SLIM PROFILE UPPER ASSEMBLY /12" MLOK / LEFTY
The AR-15 5.56/.223 16 M4 Slim Profile Upper Assembly with a 12 MLOK is an upper for an AR-15 rifle ..
-50%
AR-15 5.56/.223 20" Stainless Tactical Bull Upper Assembly | M-LOK | Straight Fluted
Upgrade your AR-15 with the 20" Stainless Tactical Bull Upper Assembly, designed for superior accura..
-10%
AR-15 5.56/.223 24" Stainless Steel Diamond Fluted Bull Upper Assembly / Mlok
Upgrade your AR-15 build with this premium 24-inch AR-15 upper assembly designed for precision, accu..
-20%
AR-15 5.56/.223 WYLDE 18" STAINLESS BLACK CLAW UPPER ASSEMBLY / LEFTY / MLOK
AR-15 5.56/.223 WYLDE 18" STAINLESS BLACK CLAW UPPER ASSEMBLY / LEFTY / MLOK. THIS UPPER IS ESPECIAL..
-13%
AR-15 7.62x39 16" MAGPUL MOE Defender Rifle Kit – Left-Hand – Mil-Spec – No Lower Receiver
Build your left-handed AR-15 in 7.62x39 with this complete MAGPUL MOE Defender Rifle Kit. Engineered..
-15%
AR-15 Trump 2024 Series Limited Edition Furniture Set | Anodized Blue | Handguard, Stock, Pistol Grip
Show your patriotic pride and upgrade your AR-15 with the Trump 2024 Series Limited Edition Complete..
-13%
AR-15 Trump 2024 Series Limited Edition Furniture Set | Anodized Gold | Pistol Grip, M-LOK Handguard, Stock
Introducing the AR-15 Trump 2024 Series Limited Edition Complete Furniture Set with a striking Anodi..
-13%
AR-15 Trump 2024 Series Limited Edition Furniture Set | Anodized Red | Handguard, Stock, Pistol Grip
Upgrade your AR-15 with the Trump 2024 Series Limited Edition Complete Furniture Set in Anodized Red..
-25%
Moriarti AR-15 400 Legend 7.5" Pistol Upper – Flash Cone Muzzle, 10" M-LOK, Made in USA
Unleash short-barrel stopping power with the Moriarti AR-15 7.5" 400 Legend Pistol Upper Assembly, e..
-14%
Moriarti AR-15 7" Thread-On Fake Suppressor Gen 2 – 1/2x28, Barrel Length Extension, 5.56 Caliber
Moriarti's AR-15 7" Thread-On Fake Suppressor, Gen 2 is the perfect addition for those looking to ex..
-38%
Moriarti MA-15 5.56 NATO 13.9" 'The Transformer' Enhanced TakeDown Semi Auto Short Barreled Rifle
The MA-15 5.56 NATO 13.9" 'The Transformer' Enhanced TakeDown Semi Auto Rifle from Moriarti Armament..
Aero Precision M16A4 Clone Lower Receiver – Semi-Automatic, 5.56 NATO, Stripped | APAR148017C
Build your M16A4 clone with authenticity using the Aero Precision M16A4 Clone Lower Receiver, now av..
Aero Precision M4E1 Stripped Lower Receiver - Kodiak Brown - APAR600025C
The Aero Precision M4E1 Stripped Lower Receiver delivers the aesthetic of a billet receiver in a dur..
AR-15 .223 Wylde 7.5" Inch Pistol Length Barrel 1:7 Twist / GOLD
AR-15 .223 Wylde 7.5" Inch Pistol Length Barrel 1:7 Twist / GOLDLength: 7.5" Pistol.223 WYLDE1:7 Twi..
-50%
AR-15 .223/5.56 Polished Aluminum Lightweight Competition Bolt Carrier Group - Gold
Elevate your shooting performance with the AR-15 .223/5.56 Polished Aluminum Lightweight Competition..
AR-15 .224 VALKYRIE 20" DIAMOND FLUTED HEAVY BARREL/ 416R / 1:7 TWIST
AR-15 20" .224 VALKYRIE DIAMOND FLUTED HEAVY BARREL/ 416R / 1:7 TWIST 20" HEAVY CONTOUR WITH 1:7..
-42%
AR-15 .224 Valkyrie 20" Diamond Fluted Stainless Steel Upper Assembly | Mlok | Match Grade 416R Barrel
The Moriarti Armaments AR-15 .224 Valkyrie 20" Diamond Fluted Stainless Steel Upper Assembly is a pr..
AR-15 .224 VALKYRIE 20" HEAVY BARREL / STAINLESS / 1:7 TWIST
AR-15 .224 VALKYRIE 20" HEAVY BARREL / STAINLESS / 1:7 TWIST20" HEAVY CONTOUR WITH 1:7 TWIST416R STA..
AR-15 .224 Valkyrie 20" SPIRAL FLUTED HEAVY BARREL/ SS / 1:7 TWIST
AR-15 .224 Valkyrie 20" SPIRAL FLUTED HEAVY BARREL/ SS / 1:7 TWIST20" HEAVY CONTOUR WITH 1:7 TWIST41..
AR-15 .224 Valkyrie 20" STRAIGHT FLUTED HEAVY BARREL/ 416R / 1:7 TWIST
AR-15 .224 Valkyrie 20" STRAIGHT FLUTED HEAVY BARREL/ 416R / 1:7 TWIST 20" HEAVY CONTOUR WITH 1..
-30%
AR-15 .224 Valkyrie 20" Straight Fluted Stainless Steel Upper Assembly / M-LOK - Match Grade Barrel, Triport Muzzle Brake
The AR-15 .224 Valkyrie 20" Straight Fluted Stainless Steel Upper Assembly is an excellent upgrade f..
-42%
AR-15 .224 Valkyrie 20″ Spiral Stainless Steel Upper Assembly / Mlok
The Moriarti Armaments AR-15 .224 Valkyrie 20″ spiral fluted stainless steel upper assembl..
-33%
AR-15 .458 Socom 18" 4150 CMV Upper Assembly / 15" Mlok
AR-15 .458 Socom 18" 4150 CMV Upper Assembly / 15" Mlok . This upper assembly is com..
AR-15 / AR-10 Walking Dead Compensator, 5/8x24 TPI, Nitride
The Walking Dead Compensator is designed to offer superior recoil management and muzzle control, mak..
-20%
AR-15 12.7x42 7.5" Pistol Upper Assembly / Mlok Free Float
AR-15 12.7x42 7.5" Pistol Upper Assembly / Mlok Free Float - This assembly includes 7" heavy pr..
-40%
AR-15 16" 5.56/.223 Blue Diamond Modular Bull Upper Assembly | 10" Mlok
Features:Barrel: 16" 416 stainless steel bull contour barrel with diamond fluting, blue coated with ..
-33%
AR-15 5.56 NATO 7.5" Moriarti Arms 'The Transformer' Enhanced TakeDown Semi Auto Pistol | SBA3 | Compact, Versatile, and Customizable
The AR-15 5.56 NATO 7.5" Moriarti Arms 'The Transformer' Enhanced TakeDown Semi Auto Pistol is the p..
-28%
AR-15 5.56/.223 10.5" 'Walking Dead' Pistol Upper Assembly
Features:Barrel - 10.5" 4150 govt profile barrel. Hardened to 26-32 rc and stress relieved. Ch..
-36%
AR-15 5.56/.223 16" Black Diamond Modular Bull Upper Assembly / Mlok
AR-15 5.56/.223 16" black diamond modular bull upper assembly is offered exclusively by Moriarti Arm..
-45%
AR-15 5.56/.223 16" Blue Diamond Fluted Tactical Upper w/ 12" MLOK & Triport Brake | Moriarti Arms
Bring performance and bold design together with the AR-15 5.56/.223 16" Blue Diamond Tactical Upper ..
-22%
AR-15 5.56/.223 16" stainless steel diamond pulse fluted tactical bull upper assembly
AR-15 5.56/.223 16" stainless steel diamond pulse fluted tactical bull upper assembly. Specs:A3..
-25%
AR-15 5.56/.223 16" Stainless Steel Tactical Bull Upper Assembly / Mlok
AR-15 5.56/.223 16" Stainless Steel Tactical Bull Upper Assembly / Mlok Features:Barrel - 16" 416 st..
-33%
AR-15 5.56/.223 16" stainless steel x-treme fluted bull upper assembly / Mlok
AR-15 5.56/.223 16" stainless steel x-treme fluted tactical bull upper assembly includes:Barrel - 16..
-40%
AR-15 5.56/.223 16" Stainless Straight Fluted Modular Upper Assembly / Bull / Mlok
AR-15 5.56/.223 16" Stainless Straight Fluted Modular Upper Assembly / Bull / Mlok is offered exclus..
-30%
AR-15 5.56/.223 16" yellow diamond modular bull upper assembly
AR-15 5.56/.223 16" yellow diamond modular bull upper assembly is offered exclusively by Moriarti Ar..
AR-15 5.56/.223 24" black nitride bull upper assembly / 15" Mlok
Maximize Precision with the AR-15 5.56/.223 24" Black Nitride Modular Bull Upper AssemblyTake your s..