AR-15 / M4 / AR-10 / M-16 Parts

AR-15, M4, AR-10, and M16 parts include components for maintaining, repairing, upgrading, and customizing popular modern sporting rifle platforms. This category includes replacement parts, internal components, controls, small parts, hardware, and accessories designed for compatible rifle builds and configurations. Whether you are servicing a current rifle, completing a build, or upgrading performance and ergonomics, choosing the correct platform-specific parts helps ensure proper fit and dependable function.

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  • AREA 419 8 Flat Aluminum Free-Float Handguard for AR-15

    AREA 419 8 Flat Aluminum Free-Float Handguard for AR-15

    AREA 419 FIREARMS
    $80.99
    AREA 419 ARCALOCK 8 Flat Aluminum Handguard for AR-15 The AREA 419 Firearms 419-ALK-UNIV8RAIL is a lightweight, durable, and versatile free-float handguard designed for AR-15 rifles. Crafted from high-quality aluminum with a flat black finish, this...
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  • EDGAR SHERMAN DESIGN ESD-GRANITE-F-FDE Granite AR-15 Grip FDE

    EDGAR SHERMAN DESIGN ESD-GRANITE-F-FDE Granite AR-15 Grip FDE

    EDGAR SHERMAN DESIGN
    $55.99
    EDGAR SHERMAN DESIGN ESD-GRANITE-F-FDE Granite Grip FDE The EDGAR SHERMAN DESIGN ESD-GRANITE-F-FDE is a high-quality firearm grip featuring a granite-inspired texture finished in Flat Dark Earth (FDE). Crafted for durability and enhanced grip, this...
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  • LANTAC USA M-Spec Bolt Carrier Group for 223/556 with Titanium Nitride Finish

    LANTAC USA M-Spec Bolt Carrier Group for 223/556 with Titanium Nitride Finish

    LANTAC USA
    $199.99
    LANTAC USA M-Spec Bolt Carrier Group for 223/556 with Titanium Nitride Finish The LANTAC 01-MSPEC-556-TIN-BCG is a high-performance bolt carrier group designed for AR-15 style rifles chambered in 223 Remington and 5.56 NATO. Crafted with precision, this...
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  • LANTAC Intermediate Length Nitrided AR Gas Tube

    LANTAC Intermediate Length Nitrided AR Gas Tube

    LANTAC USA
    $22.99
    LANTAC Intermediate Length Nitrided Gas System is designed for AR-15 style rifles, offering reliable performance with enhanced durability. Crafted with precision, this gas system features a nitrided finish that provides corrosion resistance and increased...
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  • One Horse LLC OH-UR02 AR-15 A3 Stripped Upper Receiver

    One Horse LLC OH-UR02 AR-15 A3 Stripped Upper Receiver

    One Horse LLC
    $63.99
    ONE OH-UR02 AR15 A3 STRIPPED UPPER RCVER One Horse LLC OH-UR02 AR-15 A3 Stripped Upper Receiver The One Horse LLC OH-UR02 is a stripped upper receiver designed for AR-15 A3 platform firearms. Crafted from high-quality materials, this upper provides a...
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  • One Horse 10.5 Inch AR-15 Barrel Carbine Gas System / 5.56 NATO

    One Horse 10.5 Inch AR-15 Barrel Carbine Gas System / 5.56 NATO

    One Horse LLC
    $103.99
    One Horse 10.5 Inch AR-15 Barrel Carbine Gas System / 5.56 NATO The One Horse LLC OH-BR05 is a 10.5-inch carbine gas system designed specifically for 5.56 NATO caliber rifles. Crafted with precision, this gas system features a reliable design suitable...
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  • One Horse 10.5-inch 300 Blackout AR Rifle Barrel 1:7 Twist

    One Horse 10.5-inch 300 Blackout AR Rifle Barrel 1:7 Twist

    One Horse LLC
    $103.99
    One Horse 10.5-inch 300 Blackout Rifle Barrel 1:7 Twist The One Horse LLC OH-BR06 is a precision-machined 10.5-inch barrel designed specifically for 300 Blackout rifles. Crafted for optimal performance, this barrel features a 1:7 twist rate to stabilize...
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  • One Horse AR-15 Complete Lower Parts Kit

    One Horse AR-15 Complete Lower Parts Kit

    One Horse LLC
    $50.99
    One Horse LLC OH-LPK01 AR-15 Complete Lower Parts Kit The One Horse LLC OH-LPK01 is a comprehensive AR-15 lower parts kit designed for firearm enthusiasts and builders seeking a reliable and straightforward upgrade or replacement component. This kit...
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  • DPMS Panther Arms CAR15 Stock Assembly Kit / OD Green

    DPMS Panther Arms CAR15 Stock Assembly Kit / OD Green

    DPMS PANTHER ARMS
    $49.99
    DPMS Panther Arms CAR15 Stock Assembly Kit Model DP51655231756 The DPMS Panther Arms CAR15 Stock Assembly Kit in OD Green offers a complete replacement or upgrade solution for AR-15 style rifles. This stock assembly is designed to provide a sturdy and...
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  • Armaspec ARM6521-BLK Self-Retention Caste Nut for AR-15 and Rifles

    Armaspec ARM6521-BLK Self-Retention Caste Nut for AR-15 and Rifles

    ARMASPEC
    $26.99
    ARMASPEC ARM6521-BLK SELF-RETENTION CASTE NUT/AL Armaspec ARM6521-BLK Self-Retention Caste Nut in Black Aluminum The Armaspec ARM6521-BLK is a high-quality self-retention caste nut designed for AR-15 rifles and compatible platforms. Crafted from durable...
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  • Armaspec ARM6521-FDE Self-Retention Caste Nut for Firearms

    Armaspec ARM6521-FDE Self-Retention Caste Nut for Firearms

    ARMASPEC
    $26.99
    ARMASPEC ARM6521-FDE SELF-RETENTION CASTE NUT/AL Armaspec ARM6521-FDE Self-Retention Caste Nut for Firearms The Armaspec ARM6521-FDE is a high-quality self-retention caste nut designed specifically for firearm assemblies. Crafted from durable aluminum...
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  • Armaspec ARM251-BLK Superlight Gun Build Kit for .223 Caliber

    Armaspec ARM251-BLK Superlight Gun Build Kit for .223 Caliber

    ARMASPEC
    $71.99
    ARMASPEC ARM251-BLK SUPERLIGHT GN BUILD KIT 223 Armaspec ARM251-BLK Superlight Gun Build Kit for .223 Caliber The Armaspec ARM251-BLK Superlight GN Build Kit is designed for enthusiasts seeking a lightweight and reliable upgrade for their .223 caliber...
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  • Armaspec ARM251-FDE Superlight Gun Build Kit for .223 Caliber

    Armaspec ARM251-FDE Superlight Gun Build Kit for .223 Caliber

    ARMASPEC
    $71.99
    ARMASPEC ARM251-FDE SUPERLIGHT GN BUILD KIT 223 Armaspec ARM251-FDE Superlight Gun Build Kit for .223 Caliber The Armaspec ARM251-FDE Superlight Gun Build Kit is designed for firearm enthusiasts seeking a lightweight, durable upgrade for their .223...
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  • White Label Armory Forged Lower Receiver for AR-15 in Black Hardcoat Anodize

    White Label Armory Forged Lower Receiver for AR-15 in Black Hardcoat Anodize

    White Label Armory
    $82.99
    White Label Armory Forged AR-15 Lower Receiver Model WLA-LOW-1031-01 The White Label Armory WLA-LOW-1031-01 forged lower receiver is designed for AR-15 platform firearms, featuring a durable black hardcoat anodized finish. Made from high-quality...
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  • Luth-AR MBA-3F AR Stock Assembly FDE

    Luth-AR MBA-3F AR Stock Assembly FDE

    Luth-AR
    $150.99
    This stock assembly provides a reliable and durable upgrade for your AR-style rifle. Designed for enhanced stability and comfort, it is commonly used for firearm customization, maintenance, and improving shooting ergonomics. Made from high-quality...
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  • Luth-AR A1 Buttstock Black

    Luth-AR A1 Buttstock Black

    Luth-AR
    $35.99
    LUTH-AR BS-A1 A1 BUTTSTK - BLACK This black A1 buttstock from Luth-AR is designed to provide a reliable and comfortable shoulder support for AR-style rifles. It is commonly used in tactical, hunting, and home defense applications, offering enhanced...
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  • Luth-AR BS-M4 M4 Buttstock with Rear Sling Swivel

    Luth-AR BS-M4 M4 Buttstock with Rear Sling Swivel

    Luth-AR
    $22.99
    LUTH-AR BS-M4 M4 BUTTSTK W/REAR SLNG SWV This M4 buttstock is designed for reliable support and comfortable handling on your M4-style rifle. It features an integrated rear sling swivel for added versatility and ease of carry during training,...
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  • Luth-Ar M4 Buttstock with Rear Sling Swivel for .223

    Luth-Ar M4 Buttstock with Rear Sling Swivel for .223

    Luth-AR
    $63.99
    LUTH-AR BS-M4KM M4 BUTTSTK W/REAR SLNG SWV 223 This Luth-Ar M4 buttstock is designed for reliable performance and versatility in firearm customization. It features a sturdy construction optimized for durability and ease of use, making it suitable for...
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  • Luth-AR FK-A2 Complete A2 Rifle Furniture Kit Black

    Luth-AR FK-A2 Complete A2 Rifle Furniture Kit Black

    Luth-AR
    $92.99
    LUTH-AR FK-A2 COMPLETE A2 RIFLE FURN KIT BLK This complete A2 rifle furniture kit from Luth-AR provides essential components for upgrading or building your AR-style firearm with classic A2 features. Designed for compatibility with AR platforms, this...
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  • Luth-AR FK-A2-G Complete A2 Rifle Furniture Kit in Olive Drab Green

    Luth-AR FK-A2-G Complete A2 Rifle Furniture Kit in Olive Drab Green

    Luth-AR
    $96.99
    LUTH-AR FK-A2-G COMPLETE A2 RIFLE FURN KIT ODG This complete A2 rifle furniture kit offers a reliable upgrade or replacement option for AR-style firearms. Designed for easy installation, it includes essential components to enhance your rifle’s...
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  • Luth-AR BS-15FC Commercial Carbine Buffer Tube / Free-Form Flag

    Luth-AR BS-15FC Commercial Carbine Buffer Tube / Free-Form Flag

    Luth-AR
    $32.99
    LUTH-AR BS-15FC COMM CARB BUFF TUBE FREEDM FLG This buffer tube is designed for AR-style rifles, offering reliable performance and compatibility with a variety of firearm setups. It features a durable construction suitable for both range training and...
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  • Luth-Ar HG-A1 A1 Handguard

    Luth-Ar HG-A1 A1 Handguard

    Luth-AR
    $46.99
    LUTH-AR HG-A1 A1 HANDGUARD The Luth-Ar HG-A1 A1 Handguard is a durable, lightweight accessory designed for AR-style rifles. It offers a strategic upgrade for firearm enthusiasts seeking improved ergonomics and customization options. This handguard...
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  • Luth-Ar HG-ML A2 Handguard Mid-Length

    Luth-Ar HG-ML A2 Handguard Mid-Length

    Luth-AR
    $20.99
    LUTH-AR HG-ML A2 HNDGRD MID-LNGTH This mid-length handguard is designed for use with AR-style rifles, providing a durable and lightweight option for firearm customization. Made by Luth-Ar, it offers a comfortable grip and easy handling, making it...
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  • Luth-Ar XM-177 A1 Translucent Carbine Handguard with Metal

    Luth-Ar XM-177 A1 Translucent Carbine Handguard with Metal

    Luth-AR
    $39.99
    LUTH-AR XM-177 A1 TRANGLR CARB HNDGRD W/MTL The Luth-Ar XM-177 A1 translucent carbine handguard with metal provides a lightweight yet durable upgrade for AR-15 style rifles. Designed for easy installation, this handguard enhances the firearm's...
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  • Luth-AR LR-08 Selector Safety for AR-15

    Luth-AR LR-08 Selector Safety for AR-15

    Luth-AR
    $11.99
    LUTH-AR LR-08 SELECTOR SAFETY AR15 This selector safety is designed specifically for AR-15 rifles, offering reliable and smooth operation for firearm control. It is commonly used for customizing or upgrading AR-15 platforms to enhance safety and...
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