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.
What parts do I need to build an AR-15?
A complete AR-15 build typically requires an upper assembly, lower receiver, lower parts, barrel, bolt carrier group, charging handle, stock or brace, buffer system, magazine, and compatible accessories. Product requirements may vary depending on your build configuration.
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Moriarti AR-15 5.56 Nato 16" mid-length barrel, 1-7 twist. Gov't profile
Moriarti AR-15 5.56 Nato 16" mid-length barrel, 1-7 twist. Gov't profileCHAMBERED IN 5.56 NATO (ACCE..
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Moriarti AR-15 5.56 NATO 24" Spiral Fluted SS Heavy Barrel – 1:8 Twist | Rifle Gas | 416R
Elevate your AR-15’s precision with the Moriarti 5.56 NATO 24" Spiral Fluted Heavy Barrel, crafted f..
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Moriarti AR-15 5.56/.223 16" Pencil Upper | 12" M-LOK | 1x7 Twist
Go ultra-light without sacrificing performance. The Moriarti AR-15 5.56/.223 16" Pencil Profile Uppe..
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Moriarti AR-15 5.56/.223 17.1" Pentagon Stainless Upper Assembly / Mlok / Predator
Transform your AR-15 build with the AR-15 5.56/.223 Pentagon Stainless Upper Assembly. Engineered fo..
Moriarti AR-15 6.8 SPC BCG Hybrid Nitride | M16 Cut / .224 Valk / 22 Nosler / 400 Legend
he Moriarti AR-15 M16 Hybrid BCG with nitride finish is designed for shooters demanding maximum stre..
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Moriarti AR-15 6.8 SPC II 16" MLOK Upper Assembly with Slip Over Barrel Shroud | Carbine
Assembly Features:Barrel:Length: 16" for a balance of maneuverability and accuracyMaterial: 41V50 St..
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Moriarti AR-15 7.62x39 16" M-LOK Upper – Slip Over Barrel Shroud
Looking to build a compliant, high-performance AR-15 in 7.62x39mm? Moriarti Armaments brings you a r..
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Moriarti AR-15 7.62x39 7.5" Nitride Pistol Upper Assembly / M-LOK
The AR-15 7.62x39 7.5" Nitride Pistol Upper Assembly / M-LOK is an ideal upgrade for your AR-15 pist..
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MORIARTI AR-15 COMPLETE MAGPUL MOE EPT SBA3 LOWER - BLACK
MORIARTI AR-15 COMPLETE MOE EPT SBA3 LOWER - BLACK. THIS IS AN FFL ITEM. ALL NFA RULES APPLY. ..
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Moriarti AR-15 Hammer Spring
Moriarti AR-15 Hammer SpringManufacturer:MoriartiColor:BlackGun Type:RifleGun Model:AR-15Package Con..
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Moriarti AR-15 Rifle Barrett Style Muzzle Brake / 1/2x28 Pitch
Moriarti AR-15 Rifle Barrett Style Muzzle Brake / 1/2x28This muzzle brake has 6 large 45 degree rear..
Moriarti AR-15/AR-10 .750 Low Profile Gas Block, Steel
.750 Diameter Low ProfileBlack FinishSteelUS MadeRoll Pin Included..
Moriarti AR-15/AR-10 Slip Over Barrel Shroud with Multi-Port Muzzle Brake - 5/8x24 & 1/2x28 TPI
Upgrade your AR-15 or AR-10 with the Slip Over Barrel Shroud with Multi-Port Muzzle Brake. Designed ..
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Moriarti AR-47 7.62x39 16" Stainless Black Wolf Premium Upper Assembly – MLOK, 12" Handguard
The AR-15 7.62x39 16" Stainless Black Wolf Premium Upper Assembly by Moriarti Armaments delivers exc..
Moriarti AR15 M-LOK Free Float Handguard - 5.5" | Anodized Black, Premium Aluminum Design
Enhance your AR15 build with the Moriarti M-LOK Free Float Handguard (5.5") in Anodized Black. Desig..
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Moriarti Armaments AR-15 .224 Valkyrie 20" Stainless Steel Rifle Kit | 15" M-LOK Rail
Unlock the power and precision of .224 Valkyrie with the Moriarti Armaments AR-15 20" Stainless Stee..
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Moriarti Armaments AR-15 18″ 6MM ARC Stainless Upper Assembly / Quad / A2
Moriarti Armaments AR-15 18″ 6MM ARC Match Grade Stainless Upper Assembly (Rocket Man)Upgrade your r..
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Moriarti Armaments AR-15 Big Bore Complete Lower Receiver - A2 Grip, No Stock, .50BE, .450BM, .458 Caliber Compatible
The Moriarti Armaments AR-15 Big Bore Complete Lower Receiver is the perfect foundation for your cus..
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Moriarti Armaments AR-15 Complete Lower Receiver / Skeleton / Carbine Buffer Tube - Multi-Caliber, Choose Color
The Moriarti Armaments AR-15 Complete Lower Receiver with Skeleton Grip and Carbine Buffer Tube ..
Moriarti Armaments MA-15 Complete Lower Receiver - Semi-Automatic, Multi-Cal, Black Finish, Micro Pistol, Mil-Spec
The Moriarti Armaments Complete Lower Receiver is the perfect foundation for building your next pist..
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Moriarti Drop-In Trigger Group | Single Stage 3.5lb Pull | AR-15 & AR-10
The Moriarti Drop-In Trigger Group is designed to deliver a smooth and crisp 3.5lb trigger pull, mak..
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Moriarti M4/M16 Bolt Carrier Group / Full Auto Comp / Nitride
Manufacturer: Moriarti ArmamentsCaliber: 5.56/.223, 300 BLK, 350 LegendCarrier Style: M16-CutFinish:..
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Moriarti MA-15 6.5 Grendel 10.5" M-LOK Pistol | Semi-Auto, Anodized Black Finish
Key Features Chamber: 6.5 Grendel for powerful, long-range performance Action: Semi-auto dir..
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Moriarti MA15 7.62x39 Lower Receiver Complete | 6-Position Mil-Spec Stock | Semi-Automatic | Black Finish
The MA-47 7.62X39 Moriarti Lower Receiver Complete is the perfect foundation for building your AR-47..
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Moriarti MAGPUL MOE AR-15 5.56/.223 16" Semi-Auto Rifle – FDE
Unleash your performance with the MAGPUL MOE AR-15 5.56/.223 16" Semi-Auto Rifle, expertly crafted f..
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Red Diamond Tactical AR-15 5.56/.223 16" Upper Assembly - M-LOK
Elevate your AR-15 with the Red Diamond Tactical 16" Upper Assembly, designed exclusively for Moriar..
RISE Armament Flat Super Sporting Trigger | "Don't Tread On Me" Edition | Anti-Walk Pins Included
The RISE Armament Flat Super Sporting Trigger with the exclusive "Don't Tread On Me" logo edition is..
RISE Flat Super Sporting Trigger (Join or Die) | 3.5lb Pull Weight, Flat Trigger, Black
The RISE Flat Super Sporting Trigger (RA-140 SST) is the ultimate upgrade for any AR-15 or AR-10. Wi..
SB Tactical SBA3 Adjustable Pistol Stabilizing Brace - FDE - NO BUFFER TUBE
Compatible with any mil-spec carbine receiver extension (not included).Designed for all platforms ca..
SB Tactical SBA4 AR-15 Pistol Stabilizing Brace | Choose Color
Enhance your AR-style pistol with the SBM4 SB Tactical Pistol Stabilizing Brace. Designed for improv..
SBA5 Adjustable Pistol Stabilizing Brace – 5-Position, QD Ready, Mil-Spec Compatible, Black – SB Tactical
The SBA5 Adjustable Pistol Stabilizing Brace from SB Tactical is a high-performance, lightweight sta..
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Smith and Wesson M&P15 SPORT III 5.56 NATO / .223 Remington | 16" Barrel | 30RD | Black
The Smith & Wesson M&P15 SPORT III offers exceptional performance and reliability in a sleek..
Spike’s Tactical Spartan Stripped AR-15 Lower Receiver – STLS021
Spike's Tactical Spartan stripped lower receivers are built to exacting standards and deliver both r..
STERN DEFENSE RAB-AD Rapid Attach Buttstock Adapter
The Rapid Attach Buttstock Adapter allows you to greatly reduce the length of your firearm for compa..
Strike Industries Cookie Cutter Muzzle Brake - AR-15/AR-10 | Recoil & Muzzle Rise Compensator | Choose Thread Size
The Strike Industries Cookie Cutter Muzzle Brake is a game-changer for shooters looking to eliminate..
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Timney AR Calvin Elite 1.5lb Trigger | Adjustable Shoe, Red Finish, Drop-In Design
The Timney AR Calvin Elite Trigger is engineered to elevate the performance of your AR-15 or AR-10 w..
Timney Impact AR-15 Trigger | 3lb Break, Drop-In Design for AR-15 - Black
The Timney Impact AR Trigger is designed to offer superior performance at an affordable price. Engin..
TriggerTech Adaptable Curved Trigger | Adjustable 2.5-5.0lb Pull Weight | AR-15
The TriggerTech Adaptable Curved Trigger is designed to meet the needs of shooters looking for a tri..
Accu-Wedge
Improves accuracy by eliminating play in the AR-15/AR-10 receiver. Buffers the cycling system to red..
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AR-15 .224 Valkyrie 20" Nitride Rifle Build Kit | 15" M-LOK | Adaptive Stock
The AR-15 .224 Valkyrie 20" Nitride Rifle Build Kit is the perfect solution for shooters seeking a h..
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AR-15 .300 AAC Blackout 10.5" Pistol Builder Kit | M-LOK, SBA3 Brace, USA Made – Moriarti Armaments
Build your next AR-15 with the Moriarti Armaments AR-15 .300 AAC Blackout 10.5" Pistol Builder Kit. ..
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AR-15 .50 BEOWULF 12.7x42 18" Parkerized Upper Assembly / 15" Mlok
Build your ultimate big-bore AR-15 with this 18" .50 Beowulf upper assembly chambered in 12.7x42. Th..
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AR-15 300 AAC Blackout 10.5" Pistol Kit / Quadrail / Classic - Color Options
AR-15 300 AAC Blackout 10.5" Pistol Kit / Quadrail / Classic - Color Options contains all components..
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AR-15 300 Blackout Moriarti 7.5" Semi Auto Pistol | Airlight Series | Grey & Custom Colors Available
Compact, Powerful, and Customizable – The Airlight Series AR-15 Pistol in 300 BlackoutThe AR-15 Mori..
AR-15 5.56 CAL M4E1 Rifle Complete Lower Receiver w/ A2 Grip - No Stock - Anodized Black
The AR-15 5.56 M4E1 Complete Lower Receiver is the ideal foundation for building your custom AR-15 r..
AR-15 5.56 NATO 7.5" Semi-Auto Pistol with Gold Plated Furniture | SBA3 Brace, M-LOK Rail, Nickel Boron M16 BCG, Custom Gold Accents
Discover the ultimate in AR-15 craftsmanship with the Moriarti Arms 5.56 NATO 7.5" Semi-Auto Pistol,..
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AR-15 5.56/.223 7.5" M-LOK Upper Assembly with SOCOM Style Muzzle Brake
AR-15 5.56/.223 7.5" M-LOK Upper Assembly with SOCOM Style Muzzle BrakeElevate your AR-15 with the 5..
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AR-15 5.56/.223 Moriarti 7.5" Semi Auto Pistol | Airlight Series | Choose Your Color
Compact, Lightweight, and Stylish – The Airlight Series AR-15 Pistol by Moriarti ArmsThe AR-15 Moria..
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AR-15 5.56/.223 SIDE CHARGING UPPER RECEIVER WITH BCG - RIGHT HAND
AR-15 5.56/.223 RIGHT HANDED SIDE CHARGING UPPER RECEIVER WITH BCG - Upgrade your AR with Moriarti A..
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AR-15 6.8 SPC II 10.5" Pistol Builder Kit | M-LOK, SBA3 Brace, USA Made – Moriarti Armaments
Build your next AR-15 with the Moriarti Armaments AR-15 6.8 SPC II 10.5" Pistol Builder Kit. Designe..