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-15 300 Blackout 16" Rifle Kit with 15" M-Lok Handguard, Magpul SL Stock and Grip – Cerakote Option
AR-15 300 Blackout 16" Rifle Kit with 15" M-Lok Handguard, Magpul SL Stock and Grip – Cerakote Optio..
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AR-15 300 Blackout 16" Stainless Black Claw rifle kit /12" mlok rail/Adaptive Stock
AR-15 300 Blackout 16" Stainless Black Claw rifle kit /12" mlok rail contains all components to..
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AR-15 5.56/.223 12.5" M4 Pistol Kit / Mlok / SBA3
Complete Your Build with the AR-15 5.56/.223 12.5" Pistol Kit – M-Lok, SBA3 Brace, and Mil-Spec Comp..
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AR-15 6.5 Grendel 16" Tactical Upper with 15" M-Lok Handguard and Thread Protector - Precision, Power, and Durability
AR-15 6.5 Grendel 16" Tactical Upper with 15" M-Lok Handguard - Precision, Power, and DurabilityUpgr..
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AR-15 6.5 Grendel 18" Nitride Upper Assembly with Slim M-Lok Rail - Precision Performance for Tactical & Long-Range Shooting
Enhance your AR-15 with the 6.5 Grendel 18" Nitride Upper Assembly, built for precision, power, and ..
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AR-15 7.62x39 16" Stainless Steel Tactical Complete Rifle Kit | Mil-Spec, USA-Made
AR-15 7.62x39 16" Stainless Steel Tactical Complete Rifle Kit | Mil-Spec, Customizable, USA-MadeBuil..
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AR-47 7.62x39 16" Rifle Build Kit with Quadrail & LE Stock – USA-Made, Mil-Spec Components, Color Options
AR-47 7.62x39 16" Rifle Build Kit with Quadrail & LE Stock – USA-Made, Mil-Spec Components, Colo..
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AR-47 7.62x39 16" Rifle Build Kit – Custom Cerakote Burnt Bronze Finish, Black Tanker, Free Float Handguard
AR-47 7.62x39 16" Rifle Build Kit – Custom Cerakote Burnt Bronze Finish, Black Tanker, Free Float Ha..
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AR-47 7.62x39 16" Rifle Kit with Nitride Barrel, Custom Cerakote Options, 15" M-Lok Handguard, Magpul Stock
AR-47 7.62x39 16" Rifle Kit with Nitride Barrel, Custom Cerakote Options & M-Lok Handguard | Bui..
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Moriarti 16" Pistol-Length 300AAC Blackout 1/7 Nitride 10" Lightweight M-Lok Classic Rifle Kit
Build your ideal 300 Blackout AR-15 with this complete AR-15 300 Blackout Rifle Build Kit. Designed ..
MORIARTI AR-15 15" M-LOK Slim Profile Free Float Handguard / Diamond Cut - Lightweight, Made in USA
The MORIARTI AR-15 15" M-LOK Slim Profile Free Float Handguard combines premium materials and design..
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Moriarti AR-15 15" Mlok Rail / Free Float / Diamond Cut / FDE Cerakote
The MORIARTI AR-15 15" M-LOK Slim Profile Free Float Handguard combines premium materials and design..
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Moriarti AR-15 300AAC Blackout 16" Carbine-Length 1/8 Phosphate Magpul Moe Defender Rifle Kit
Build your perfect AR-15 300 Blackout with this high-quality 16" Magpul Moe Defender Rifle Kit. Desi..
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Moriarti Armaments AR-15 SUMMER EDITION 16" Airlight Series Rifle Kit w/Matching Upper | Choose Color & Caliber
The Moriarti Armaments SUMMER EDITION 16" Airlight Series Rifle Kit in Green is the ultimate choice ..
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13.9" 5.56 NATO AR-15 Upper Assembly – Pencil Barrel | 7" Fake Suppressor
The Moriarti 13.9" 5.56 NATO AR-15 Upper Assembly combines a lightweight pencil-profile barrel, a 12..
AR-15 15" M-LOK Super Slim Light Free Float Handguard - D Cut, Anodized Black, 7075-T6 Aluminum
The AR-15 15" M-LOK Super Slim Light Free Float Handguard is engineered for strength, durability, an..
AR-15 15" SOCOM Series Suppressor Compatible M-LOK Handguard – Anodized Black
The AR-15 15" SOCOM Series Suppressor Compatible Handguard is engineered for shooters running modern..
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AR-15 6.5 Grendel 16" Carbine Upper Assembly | 15" M-Lok Handguard | Custom Cerakote Gradient Colors | 1:8 Twist | 5/8x24 Thread
Upgrade your AR-15 with the Moriarti Armaments 6.5 Grendel 16" Carbine Upper Assembly, offering powe..
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AR-15 6.5 Grendel Type II 16" Tactical Upper Assembly – M-LOK Handguard, 4150 CMV Barrel, Shark Muzzle
Moriarti Armament's AR-15 16" 6.5 Grendel Type II Tactical Upper Assembly – M-LOK Handguard, 41..
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AR-15 7.62x39 16" Magpul Moe Defender Rifle Kit - Various Colors
AR-15 7.62x39 16" Magpul Moe Defender Rifle Kit - Mil-Spec, Customizable, Made in the USABuild your ..
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AR-15 7.62x39 18" Rifle Build Kit – 15" M-Lok Handguard | Wolff Heavy Spring Enhanced Performance
AR-15 7.62x39 18" Rifle Build Kit – 15" M-Lok Handguard | Wolff Heavy Spring Enhanced PerformanceBui..
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AR-15 6.5 Grendel 18" Stainless Upper Assembly | M-LOK Handguard | Mid-Length Gas System
Take your shooting game to the next level with the AR-15 6.5 Grendel 18" Stainless Steel Upper Assem..
AR-15 16.5" AIR-LOK Series M-LOK Compression Free Floating Handguard With Monolithic Top Rail - Choose Anodized Color - US Made
The AR-15 16.5" AIR-LOK Series M-LOK Compression Free Floating Handguard with a Monolithic Top ..
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AR-15 6.5 Grendel 20" Black Diamond Stainless Upper Assembly | M-LOK Handguard | Triport Muzzle Brake
Elevate your AR-15 with the 6.5 Grendel 20" Black Diamond Stainless Steel Upper Assembly from Moriar..