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
AR-15/AR-10 Muzzle Comp with QD Blast Shield | Reduces Concussion | Moriarti Armaments
Enhance your AR-15 pistol or AR build with the Muzzle Comp with QD Blast Shield from Moriarti Armame..
AR-15/AR-10 Muzzle Comp with QD Blast Shield | Tin Coated Gold | Reduces Concussion | Moriarti Armaments
Enhance your AR-15 or AR-10 with the Muzzle Comp with QD Blast Shield from Moriarti Armaments. Featu..
AR-15/AR-10/AR-9 HEX Compensator | Muzzle Rise & Recoil Reduction | Choose TPI
Upgrade your shooting performance with the AR-15/AR-10/AR-9 HEX Compensator—designed to reduce muzzl..
AR-15/AR-10/AR-9 Micro Mini Slip Over Barrel Shroud with Multi Port Muzzle Brake | Reduce Recoil | Moriarti Armaments
The AR-15/AR-10/AR-9 Micro Mini Slip Over Barrel Shroud from Moriarti Armaments is designed to enhan..
-33%
AR-15/AR10 AIRLITE SKELETON STEEL LOW PROFILE GAS BLOCK - CHOOSE COLOR
AR-15/AR10 AIRLITE SERIES SKELETON STEEL LOW PROFILE GAS BLOCK - US MADE, choose your color - black,..
-33%
AR-47 7.62x39 5" Cookie Cutter Upper Assembly / Mlok
Upgrade your rifle with the AR-47 7.62x39 5" Cookie Cutter Upper Assembly, featuring a Micro Length ..
-44%
AR-47 7.62x39 5" Moriarti Micro Mini Series Semi-Auto Pistol | Color Option - Blue, FDE, ODG, Grey
The most popular pistol, Moriarti 5" Micro Mini Series Semi-Auto Pistol, is now available in co..
CMMG 5.7x28mm 5" Barrel & BCG Kit | Radial Delayed Blowback
The CMMG 5.7x28mm 5" Barrel and BCG Kit provides a compact barrel-and-bolt system for compatible AR-..
DB15, 10.5″, w/ 9″ V3 M-LOK Anti-Rotation S Rail, .338 ARC, Black - Diamondback Firearms
DB1989Y001 SPECIFICATIONSMANUFACTURER: Diamondback FirearmsFAMILY: DB15 SeriesMODEL:&..
DURAMAG 20RD 5.56 ALUM MAG DG/BK
This Duramag magazine fits AR-15 and holds 20 rounds. Key details Brand: DuramagCapacity: 20 round..
HEXMAG Series 2 AR-15 30-Round Magazine – 223 Remington/5.56 NATO, Black
The HEXMAG Series 2 30-round magazine is designed for AR-15 rifles chambered in 223 Remington and 5...
KCI AR-15 100 Round Drum Magazine - 5.56 Caliber, High Capacity Magazine
The KCI AR-15 100 Round Drum Magazine is designed to deliver unmatched firepower and reliable perfor..
-31%
MA-15 Complete Pistol Lower Receiver / HBPDW Pistol Brace, Black
At Moriarti Armaments, we design and manufacture high-quality, precision-engineered firearms and com..
MAG DURAMAG 20RD 6.5 GRENDL SS BLK
This Duramag magazine fits AR15 Pattern Rifles in 6.5 Grendel/6MM ARC and holds 20 rounds. Key deta..
MAG DURAMAG 20RD 6.8SPC SS BLK
This Duramag magazine fits AR Rifles, takes 224 Valkyrie/6.8 SPC and holds 20 rounds. Key details ..
MAG DURAMAG 30RD 5.56 ALUM BRZ
This Duramag magazine fits AR Rifles, takes 223/5.56 and holds 30 rounds. Key details Brand: Duram..
MAG DURAMAG 30RD 5.56 ALUM ODG
This Duramag magazine fits AR Rifles, takes 223/5.56 and holds 30 rounds. Key details Brand: Duram..
-20%
MAG MFT EXTREME DUTY 5.56 30RD AMFV
This Mission First Tactical magazine takes 223/5.56 and holds 30 rounds. Key details Brand: Missio..
-20%
MAG MFT EXTREME DUTY 5.56 30RD WLVRN
This Mission First Tactical magazine fits AR-15, takes 223/5.56 and holds 30 rounds. Key details B..
MAGPUL PMAG MOE 5.56 30RD BLK
This Magpul magazine fits AR Rifles, takes 223/5.56 and holds 30 rounds. Key details Brand: Magpul..
-49%
Micro ARP 300 Blackout 5" Complete Upper Assembly | AR-15 Pistol Upper | Suppressor Ready | Moriarti Armaments
The Moriarti Micro ARP 300 Blackout Upper Assembly is designed for shooters looking for a compact, v..
-33%
Micro ARP AR-15 300 Blackout 5" Hybrid Complete Upper Assembly | Spitfire Flash Can | M-LOK | Moriarti Armaments
Build the ultimate Micro ARP with the Moriarti AR-15 300 Blackout 5" Hybrid Complete Upper Assembly...
-43%
Micro ARP AR-47 7.62x39 5" Complete Upper Assembly | Suppressor Ready | Moriarti Armaments
The MORIARTI ARP-74 7.62x39 5" Micro Pistol Upper Assembly delivers compact power and versatility fo..
-20%
Molon Labe Engraved Stripped AR-15 Upper Receiver – 7075-T6 Forged
Add a distinctive look to your AR-15 with this Molon Labe Engraved Stripped AR-15 Upper Receiver. Ma..