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 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..
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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..
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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..
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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..
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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..
AR-15 .400 Legend 10.5" Pistol Barrel | 1:16 Twist | Pistol Gas
Build a compact .400 Legend AR-15 configuration around this 10.5" .400 Legend pistol barrel. Manufac..
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AR-15 .400 Legend 10.5" Pistol Kit | Slick Side | 10" Quad Rail
Configure a compact .400 Legend AR-15 with this Moriarti 10.5" .400 Legend pistol kit. The package c..
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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..
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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..
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 ..
AR-15 5.56 NATO 7.5" Complete Billet Side Charging Upper / Non-Reciprocating / BCG
AR-15 5.56 NATO 7.5" Complete Billet Side Charging Upper / Non-Reciprocating This drop-in upper..
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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..
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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..
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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 ..
AR-15 5.56/.223 16" RED DIAMOND FLUTED HEAVY BARREL / SS / 1:8 TWIST
AR-15 5.56/.223 16" RED DIAMOND FLUTED HEAVY BARREL / SS / 1:8 TWIST. CURRENT ETA: 3-5 WEEKS, ..
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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..
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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..
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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..
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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..