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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Moriarti Armaments AR-15 Stripped Upper Receiver – Forged, Black Anodized
The Moriarti Armaments AR-15 Stripped Upper Receiver is the perfect foundation for your next AR-15 b..
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Moriarti Armaments Assembled M4 Upper Receiver with Port Door and Forward Assist
Upgrade your AR-15 with the Moriarti Armaments Assembled M4 Upper Receiver. Designed for superior pe..
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Moriarti Armaments MA15 Mil-Spec Complete Lower Receiver – Semi-Automatic, Multi-Caliber, Pistol Build, Black Finish
Moriarti Armaments MA15 Mil-Spec Complete Lower Receiver – The ultimate foundation for your AR-15 bu..
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Moriarti Arms Stripped AR-15 Lower Receiver - Forged, Anodized, Mil-Spec, Multi Caliber
The Moriarti Arms Stripped AR-15 Lower Receiver is a high-quality, mil-spec forged lower that delive..
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Moriarti Dedicated 22 LR Stainless Steel Bolt Group - Complete
Great for any .22LR enthusiast. This .22AR Bolt Group was developed to provide a long lasting and re..
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Moriarti MA-15 .338 ARC 10.5" M-LOK Pistol w/ SBA3 Brace | Semi-Auto, Anodized Black
Key Features Chamber: 338 ARC Action: Semi-auto direct impingement for reliable and smooth..
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Moriarti MA-15 6.5 Grendel 10.5" M-LOK Pistol w/ SBA3 Brace | Semi-Auto, Anodized Black
Key Features Chamber: 6.5 Grendel for superior long-range performance Action: Semi-auto di..
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Moriarti MA-15 Complete Pistol Lower Receiver with SB Tactical HBPDW Brace, FDE
Key Features Material: Constructed from 7075 T6 aluminum forgings for maximum strength and reliab..
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Moriarti No-Logo AR-15 Stripped Lower Receiver & Rare Breed FRT-15L3 Flat Straight Trigger
The Moriarti No-Logo AR-15 Stripped Lower Receiver & Rare Breed FRT-15L3 Flat Straight Trigger p..
PROMAG AR15 7.62X39 50RD DRUM BLK
ProMag Industries, Drum Magazine, 7.62X39MM, 50 Rounds, Fits AR-15 Pattern Firearms Chambered in 7.6..
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AR-15 Left Hand 10.5" Moriarti 5.56 NATO Slim Tactical M-LOK Upper Assembly
Upgrade your AR-15 platform with the Moriarti Armaments 10.5" 5.56 NATO Slim Tactical M-LOK Upper As..
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AR-15 Left Hand 5" Slick Side Micro M-LOK Upper Assembly - Choose Caliber
Upgrade your AR-15 platform with the Moriarti Armaments AR-15 Left Hand 5" Slick Side Micro M-..
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AR-15 T6 Aluminum Adjustable Sniper Grip – Gen 2 | Matte Black
Upgrade your AR-15 rifle with the Gen 2 T6 Aluminum Adjustable Sniper Grip, engineered for precision..
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3 Pack - M4 Flat Top Upper Receiver - Stripped - Black Anodized
Machined from 7075 T6 forgings, this upper receiver features a mil-std 1913 rail for mounting optics..
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450 Bushmaster 16" AR-15 Heavy Barrel | Black Nitride | 1:24 Twist
Build a powerful big-bore AR with this 16" .450 Bushmaster barrel, engineered for dependable perform..
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7.5" 300 Blackout AR-15 Semi Auto Pistol – Minimalist Series with SBA3 | Moriarti Armaments
Crafted by Moriarti Armaments – Made in the USAFFL Transfer RequiredOriginal Set Up - Anodized Black..
ALG Defense Combat Trigger | 6-Pound Pull | Single-Stage | Nickel Boron Plated
The ALG Defense Combat Trigger (ACT) is designed for shooters who prioritize reliability, tradition,..
AR Magpul ACS carbine stock – mil-spec model
AR Magpul ACS carbine stock – mil-spec model. The patented Magpul ACS (Adaptable Carbine/Storage) – ..
AR Magpul CTR Carbine Stock Mil-Spec Model
AR Magpul CTR (Compact/Type Restricted) Carbine Stock Mil-Spec Model. Sloping cheek weld combines a ..
AR MAGPUL MOE CARBINE STOCK - MIL-SPEC
AR-15 Magpul moe carbine stock mil-spec. The Magpul MOE Stock – Mil-Spec Model is a drop-in replacem..
AR Magpul MOE Rifle Stock
Magpul MOE Rifle Stock features: Mounts to rifle-length receiver extension tube without A2 spa..
AR MAGPUL MOE SL CARB STK COMMERCIAL GRAY
Magpul Industries, MOE Slim Line Carbine Stock, Fits AR-15, Com-Spec, Gray FinishManufacturer: ..
AR MAGPUL MOE SL CARBINE STOCK - MIL-SPEC
AR MAGPUL MOE SL CARBINE STOCK - MIL-SPEC Mounts on mil-spec sized carbine receiver extension ..
AR MAGPUL STR CARBINE STOCK - MIL-SPEC
AR MAGPUL STR CARBINE STOCK - MIL-SPEC The Magpul STR (Storage/Type Restricted) is a drop-in re..
AR Magpul UBR collapsible stock - Gen 2
AR Magpul UBR collapsible stock. The UBR GEN2 is an adjustable stock for AR15/M4 and AR10/SR25 ..
AR MBA-1 Modular Buttstock Assembly for A2 Rifle Buffer Tube – Adjustable LOP & Cheek Riser – Luth-AR
The Luth-AR MBA-1 Modular Buttstock Assembly is a precision-engineered fixed stock designed for AR-1..
AR MBA-3 Fully Adjustable Carbine Buttstock – 6-Position Tube Compatible – Luth-AR
The Luth-AR MBA-3 Carbine Buttstock offers rugged adjustability and tactical functionality for AR-15..
AR Shockwave Blade 2.0 Pistol Stabilizer with Adjustable Buffer Tube - Black
With AR-15 pistols becoming extremely popular, many companies have come up with products to make it ..
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AR SILENT BUFFER ASSEMBLY SPRING - SBA Recoil Spring - H2
Looking for a buffer system that offers superior sound mitigation and easy installation for your AR-..
AR-10/AR-15 9" Fake Suppressor | 5/8x24 Thread | Anodized Black | Moriarti Armaments
Upgrade your AR-15 or AR-10 build with the 9" Fake Suppressor from Moriarti Armaments. Constructed f..
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AR-15 .22 ARC 16" Faxon Gunner Upper Assembly w/ 15" M-LOK, CLAW Muzzle Device
The AR-15 .22 ARC 16" Faxon Gunner Upper Assembly brings the high-performance power of the .22-250 c..
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AR-15 .223 Wylde 18" Stainless Upper Assembly / 15" M-LOK / BCG & CH
Upgrade your AR-15 with the Moriarti Arms 18" .223 Wylde Stainless Upper Assembly, designed for both..
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AR-15 .223 Wylde 24" CMV Tactical Bull Upper Assembly, Left Handed Side Charger
AR-15 .223 Wylde CMV Tactical Bull Upper Assembly, Left Handed Side Charger. CA and NY complia..
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AR-15 .223 Wylde 24" Tactical Bull Upper Assembly / Right Hand Side Charger W/ BCG
AR-15 .223 Wylde 24" Tactical Bull Upper Assembly, Side Charger. For those who frequently..
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AR-15 .223/5.56 A2 Flash Hider | 1/2x28 Threads | Bird Cage Style | Choose Color
Enhance your AR-15 with the .223/5.56 A2 Flash Hider, designed to provide exceptional flash suppress..
AR-15 .223/5.56 A2 Flash Hider | Stainless Steel | 1/2x28 Threads | Bird Cage Style
Upgrade your AR-15 with the .223/5.56 A2 Flash Hider in Stainless Steel. This bird cage style flash ..
AR-15 .223/5.56 HEXMAG Carbon Fiber 30RD Magazine – Dark Grey | Durable & High-Capacity
The AR-15 .223/5.56 HEXMAG Carbon Fiber 30RD Magazine in Dark Grey is the ideal choice for AR rifle ..
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AR-15 .223/5.56 JE Machine Tech Sidewinder Blast Diffuser - 1/2X28 | Reduce Blast & Dust | Black Nitride
The JE Machine Tech Sidewinder Blast Diffuser for AR-15 in .223/5.56 caliber is a cutting-edge muzzl..
AR-15 .224 Valkyrie 20" VALKYRIE MEDIUM RIFLE LENGTH 1/7 BARREL - 4150 CMV
AR-15 .224 Valkyrie 20" VALKYRIE MEDIUM RIFLE LENGTH 1/7 BARREL - 4150 CMVLENGTH: 20"PROFILE: MEDIUM..
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AR-15 .224 Valkyrie 20″ nitride upper assembly / Mlok
The Moriarti Armaments AR-15 .224 Valkyrie 20″ nitride upper assembly / Mlok comes complet..
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AR-15 .224 Valkyrie 20″ stainless steel upper assembly / 15" Mlok
The Moriarti Armaments AR-15 .224 Valkyrie 20″ stainless steel upper assembly comes complete wi..
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AR-15 .300 Blackout 7.5" Complete Ultralight Series Pistol Kit – M-LOK – Choose Your Color
Build your ultimate AR-15 pistol with the 7.5" Complete Ultralight Series Pistol Kit! This custom ki..
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AR-15 .300 BLK 16" PISTOL LENGTH UPPER ASSEMBLY / 1:7 / 12" MLOK / TRIPORT
With a 16 inch nitride barrel chambered in 300 blackout, this AR15 upper receiver assembly is readil..
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AR-15 .300 BLK 16" PISTOL UPPER ASSEMBLY /15" MLOK / CERAKOTE & CHOOSE
AR-15 .300 BLK 16" PISTOL LENGTH 1:8 TWIST / 15" MLOK / CERAKOTE & CHOOSE COLOR ON TOP OF PAGE. ..
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AR-15 .338 ARC 10.5" Pistol Kit | 1:5 Twist | Slick Side | 10" Quad Rail
Build around the increasingly popular .338 ARC cartridge with this Moriarti 10.5" .338 ARC AR-15 pis..
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AR-15 .350 Legend 16" Carbine Upper Assembly | 15" M-Lok Handguard | Custom Cerakote Gradient Colors | 1:16 Twist | 5/8x24 Thread
Transform your AR-15 with the Moriarti Armaments .350 Legend 16" Carbine Upper Assembly, now availab..
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AR-15 .350 Legend 16" Stainless Black Claw Premium Upper Assembly / M-Lok
Elevate your AR-15 platform with the .350 Legend 16" Stainless Black Claw Premium Upper Assembly, de..
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AR-15 .350 Legend 16" Stainless Steel Fluted Upper Assembly | Mlok Handguard | Carbine-Length Gas System
Take your AR-15 to the next level with the Moriarti Armaments .350 Legend 16" Stainless Steel Fluted..
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AR-15 .350 Legend 16" Tactical Upper Assembly | 12" M-Lok Rail | Custom Upper | Enhanced Performance
AR-15 .350 Legend 16" Tactical Upper Assembly | 12" M-Lok Rail | Custom Upper | Enhanced Performance..
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AR-15 .350 Legend 16" Upper Assembly | 10" Quad Rail | Custom Cerakote Color Options | 1:16 Twist | 5/8x24 Thread
Transform your AR-15 with the Moriarti Armaments .350 Legend 16" Upper Assembly, designed to deliver..