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.
Refine Search
-55%
AR-15 Ejection Port Dust Cover Assembly with Air Force Engraving | Moriarti Arms
AR-15 Ejection Port Dust Cover Assembly with Custom Air Force EngravingUpgrade your AR-15 with a com..
-50%
AR-15 Ejection Port Dust Cover Engraving - ARMY
AR-15 Ejection Port Dust Cover Assembly with Custom Army EngravingEnhance your AR-15 with a complete..
-35%
AR-15 Ejection Port Dust Cover Engraving - Infringed
Upgrade your AR-15 with the Ejection Port Dust Cover Complete Assembly featuring a bold 2nd Amendmen..
-45%
AR-15 Ejection Port Dust Cover with Marines Engraving - Complete Assembly
Add a touch of pride and precision to your AR-15 with this Ejection Port Dust Cover Complete Assembl..
-1000x1000-456x456.webp "AR-15 Featureless Stock - HERA CQR | Juggernaut Tactical | Customizable & Precision Shooting")
AR-15 Featureless Stock - HERA CQR | Juggernaut Tactical | Customizable & Precision Shooting
Upgrade your AR-15 with the HERA CQR Featureless Stock from Juggernaut Tactical. Designed for precis..
-10%
AR-15 Finishing Kit - Gold Plated
Upgrade your AR-15 with this premium gold-plated enhanced controls and small parts kit, designed for..
-30%
AR-15 LEFT HAND 10.5" .300 Blackout Slick M-LOK Upper | 4150 CMV 1:7 Twist
The AR-15 Left Hand 10.5" .300 Blackout Slim M-LOK Upper is designed for left-handed shooters who wa..
-20%
AR-15 Left Hand 7.5" .300 Blackout Slim M-LOK Upper - 4150 CMV 1:7 Twist
Upgrade your AR-15 with this left hand 7.5" .300 Blackout upper assembly, perfect for tactical appli..
-20%
AR-15 Left Hand 7.5" 5.56 NATO Slim M-LOK Upper Assembly - Slick Design
The Moriarti Armaments Left Hand 7.5" 5.56 NATO Slim M-LOK Upper Assembly is the ideal choice for le..
AR-15 Lower Parts Kit w/ Drop-In Trigger, Ergo Grip, Anti-Walk Pins – Complete Mil-Spec Kit
The AR-15 Lower Parts Kit with Drop-In Trigger is a comprehensive kit designed for builders looking ..
-13%
AR-15 Micro Pistol Furniture Set | 4" M-LOK | Mil-Spec Buffer Tube | SBR Ready | Choose Color
Build out your compact AR platform with the Moriarti AR-15 Micro Pistol Furniture Set, a lightweight..
-48%
AR-15 Patriotic Dust Cover - Engraving in Red | Choose Caliber
Show your patriotic pride with the AR-15 Patriotic Dust Cover featuring a bold 300 blackout or 9mm e..
AR-15 Red Upper Kit – Tactical Charging Handle, Forward Assist, Ejection Port Door | Mil-Spec
Give your AR-15 build a bold custom look with this Mil-Spec Red Upper Receiver Kit. This complete up..
AR-15 Set - Moriarti AR15 5.56 NATO M4 Carbine Barrel with Free M4 Upper Receiver - Stripped
Enhance your AR-15 with the AR-15 Set - AR15 5.56 NATO M4 Carbine Barrel with Free M4 Upper Receiver..
AR-15 Slabside Stripped Billet Upper Receiver With 12″ Suppressor Compatible Handguard Set - Choose Color
AR-15 Slabside Stripped Billet Upper Receiver With 12″ Suppressor Compatible Handguard Set - Choose ..
-33%
AR-15 Tactical Charging Handle - U4 - Zombie Response Team
A tactical AR-15 charging handle with the U4 "Zombie Response Team" design. It is mil-spec 6061-T6 a..
-30%
AR-15 Tactical Charging Handle Oversized Latch / PUNISHER Engraving
A tactical AR-15 charging handle with an oversized latch and a Punisher engraving. It is mil-spec 60..
-456x456.webp "AR-15 Tactical Charging Handle Set with Dust Cover and Forward Assist - Cerakote Option")
-29%
AR-15 Tactical Charging Handle Set with Dust Cover and Forward Assist - Cerakote Option
An AR-15 tactical charging handle set with dust cover and forward assist, finished in the Cerakote c..
-42%
AR-15 Upper Kit Set/Charging Handle, Forward Assist/Ejection Door/We The People
AR-15 Upper Parts Kit wit custom engraving (Mil-Spec) comes with components necessary for the AR-15 ..
-20%
AR-15/.223/5.56 "Shark" Muzzle Brake | CNC Machined 4150 Steel | Black Oxide | Cerakote Options
Enhance your AR-15's performance with the "Shark" Muzzle Brake, designed for shooters who demand bot..
AR-15/AR-10 .308/45/5.56/.223 CAL 3” Fake Suppressor | Choose Color and TPI
Give your rifle a sleek, tactical look with the AR-15/AR-10 3.0” Fake Suppressor. Designed for .308,..
AR-15/AR-10 4.5″ Octagonal Fake Suppressor | Barrel Extension | Choose Color & TPI
Add style and functionality to your AR-15 or AR-10 with the 4.5″ Octagonal Fake Suppressor. Crafted ..
AR-15/AR-10 Lower Upgrade Kit - Enhanced | Ambi Safety, Trigger Guard, Extended Mag Release | Multiple Color Options
Elevate your AR-15 or AR-10 with this Enhanced Lower Upgrade Kit, featuring premium components desig..
AR-15/AR-10 Micro Slip Over Barrel Shroud with Multi Port Muzzle Brake | Recoil Reduction | Moriarti Armaments
Enhance your AR-15, AR-10, or AR pistol build with the Micro Slip Over Barrel Shroud with Multi Port..