AR-15 Parts & Components
AR-15 Parts & Components
Shop AR-15 parts and components for replacement, customization and compatible AR-platform configurations. Explore barrels, bolt carrier groups, handguards, lower parts, triggers, charging handles, stocks, buffer components, gas-system parts, muzzle devices and more. Moriarti offers AR-15 components across popular calibers, finishes and configurations, making it easy to browse individual parts or coordinate components for your firearm. Use the categories below to find the specific AR-15 parts you need.
What parts are commonly replaced or upgraded on an AR-15?
Common AR-15 replacement and upgrade parts include handguards, triggers, stocks, grips, charging handles, muzzle devices and controls, while components such as barrels, bolt carrier groups, buffers and gas-system parts are generally selected according to the firearm's specific caliber and configuration.
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AR-15 6.5 Grendel Type II Stripped Bolt - Precision Engineered for Performance
If you're building or upgrading a 6.5 Grendel AR platform, Moriarti Armaments offers the perfect sol..
AR-15 6.8 SPC II / .224 Valkyrie Complete Bolt Assembly | MPI Tested | 9310 Steel
Upgrade your AR-15 with the Moriarti 6.8 SPC II / .224 Valkyrie Complete Bolt Assembly, precision ma..
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AR-15 7.62x39 10.5" HBAR Barrel, Carbine Length Gas System, 1-10 Twist
The AR-15 7.62x39 10.5" HBAR Barrel is built for precision, durability, and reliability in your next..
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AR-15 7.62X39 16" HBAR BARREL, NITRIDE, 1X10
Upgrade your AR-15 build with the AR-15 7.62x39 16" HBAR Barrel. Crafted from 4150 Chrome Moly Vanad..
AR-15 7.62x39 Complete Bolt Assembly – 9310 Steel | MPI Tested
Upgrade or replace the bolt in your 7.62x39 AR-15 / AR-47 with this complete, ready-to-install 7.62x..
AR-15 A2 buttstock assembly kit
Standard A2 Butt Stock Assembly Stock Molded from Impact Resistant Advanced Polymer Complete wit..
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AR-15 A2 MIL-SPEC STYLE PISTOL GRIP
A2 StyleHigh Density PolymerTotal Weight : 3 ozMil-Spec..
AR-15 Anodized Charging Handle with Factory Latch - Choose Color
AR-15 Charging Handle In Anodized FinishMilspec LatchUS MadeT6 AluminumSmooth FinishAR-15 PlatformMa..
AR-15 Billet Upper Receiver with Dust Cover & Forward Assist - Flat Dark Earth
Enhance your AR-15 build with this Billet Upper Receiver featuring a Cerakote Flat Dark Earth finish..
AR-15 Charging Handle - Rainbow PVD Coated
AR-15 Charging HandleT6 6061 AluminumMil-SpecWith Factory Mil-Spec LatchMatte Rainbow PVD Coated Fin..
-228x228.webp "AR-15 Complete Micro Compact Buffer Tube 3.5'' | Choose Cerakote Color")
AR-15 Complete Micro Compact Buffer Tube 3.5'' | Choose Cerakote Color
Features:Material: 7075-T6 AluminumFinish: Choose ColorLength: 3.5” estimate depending on the lower...
AR-15 Delta Ring Assembly - Mil-Spec, Complete Set with Delta Ring, Weld Spring, Snap Ring, and Barrel Nut
The AR-15 Delta Ring Assembly is a Mil-Spec set designed to replace or upgrade your AR-15’s handguar..
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AR-15 Ejection Port Cover | Dust Cover Assembly- Skull Stay Spooky
Add a unique touch to your AR-15 with the Skull Stay Spooky engraved Ejection Port Dust Cover Assemb..
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AR-15 Finishing Kit | Black Chrome | Includes Ambi Safety, Charging Handle, & More
Enhance your AR-15 build with the AR-15 Finishing Kit in Black Chrome, a complete parts kit designed..
AR-15 Finishing Kit | Chrome Finish | Includes Ambi Safety, Charging Handle, & More
Upgrade your AR-15 build with the AR-15 Finishing Kit in Chrome Finish, a complete parts kit designe..
AR-15 Geissele Automatics Super Charging Handle - Black
The Geissele Automatics Super Charging Handle is a fully ambidextrous, dual-levered, gas-busting cha..
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AR-15 H2 Carbine Buffer Tube Kit w/ Standard End Plate - Force Reset Trigger Ready
AR15 Buffer Tube Assembly w/End Plate Mil-Spec 6 Position Buffer Tube4.6 oz. BufferBuffer Sprin..
AR-15 H3 Heavy Carbine Buffer | 5.5 oz | Black Nitride | US Made
The AR-15 H3 Heavy Carbine Buffer is a 5.5 oz buffer designed for compatible carbine-length AR-15 re..
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AR-15 Lower Parts Kit w/ Standard Grip & Trigger Guard
AR-15 Lower Parts Kit w/ Standard Grip & Trigger Guard. ALL MADE IN USA.Our AR-15 Lower Receiver..
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AR-15 M4 Six Position Buffer Tube Kit / Mil-Spec / Choose Color
This mil-spec buffer tube kit includes an end plate castle nut aluminum carbine buffer tube buffer a..
AR-15 MAGPUL CTR CARBINE STOCK KIT - MIL-SPEC
AR-15 MAGPUL CTR CARBINE STOCK KIT - MIL-SPEC. Compatible with all AR-15/M16 mil spec models. ..
AR-15 Magpul MOE Drop In Rifle Pistol Grip - OD Green
This ergonomic pistol grip design incorporates rugged, 1-piece polymer construction with the storage..
AR-15 Magpul Moe Mil-Spec Furniture Kit | Available in Various Colors | Complete Upgrade
Enhance your AR-15 with the Magpul Moe Mil-Spec Furniture Kit, a complete upgrade that combines func..
AR-15 Mil-Spec Gold 6-Position Buffer Tube Kit | T6 Aluminum | CAR Buffer & Chrome Silicon Spring – Moriarti Arms
Upgrade your AR-15 build with this US-made Mil-Spec 6-position buffer tube kit, finished in premium ..