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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  • LANTAC USA Ambidextrous Tactical Charging Handle for AR-15

    LANTAC USA Ambidextrous Tactical Charging Handle for AR-15

    LANTAC USA
    $89.99
    The LANTAC USA Ambidextrous Tactical Charging Handle is designed for AR-15 rifles, providing a durable and ergonomic solution for quick and reliable bolt manipulation. Crafted from high-strength materials, this charging handle offers smooth operation and...
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  • Primary Weapons MK1-M2U-300BLK9 MK109 MOD2 300 Blackout Upper

    Primary Weapons MK1-M2U-300BLK9 MK109 MOD2 300 Blackout Upper

    Primary Weapons
    $1,399.99
    The Primary Weapons MK1-M2U-300BLK9 MK109 MOD2 upper is designed for AR-style rifles, offering a seamless fit and enhanced performance for your firearm. Constructed with precision, this upper features a 9.7-inch barrel chambered in 300 Blackout, making...
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  • Luth-AR 24-Inch 223 Rem Stainless Steel M-LOK AR-15 Upper Assembly

    Luth-AR 24-Inch 223 Rem Stainless Steel M-LOK AR-15 Upper Assembly

    Luth-AR
    $484.99
    The Luth-AR 24-inch upper assembly is chambered in 223 Remington and designed for compatible AR-15 rifle builds. Its 416 stainless steel barrel provides a long-barreled configuration for target shooting, recreational range use, and applications where a...
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  • Kinetic Development Group KDG 7 Slot Mount FDE

    Kinetic Development Group KDG 7 Slot Mount FDE

    KINETIC DEVELOPMENT GROUP
    $77.99
    This 7 slot mount from Kinetic Development Group is designed to attach to firearms, providing a secure mounting point for accessories. It is suitable for use with various firearm platforms requiring a 7-slot attachment interface. The mount features a...
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  • Ruger AR-556 Complete Lower Receiver for AR-15 Platform Rifles

    Ruger AR-556 Complete Lower Receiver for AR-15 Platform Rifles

    Ruger
    $321.99
    The Ruger AR-556 Complete Lower Receiver is the serialized lower receiver assembly used as the foundation for a compatible AR-15 rifle build. It houses the fire control group, magazine well, safety selector, grip, buffer system, and stock attachment...
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  • TriggerTech AR-15 Competitive Independence Drop-In Trigger Black/White Flat 3.5 lb

    TriggerTech AR-15 Competitive Independence Drop-In Trigger Black/White Flat 3.5 lb

    TriggerTech
    $198.99
    The TriggerTech AR-15 Competitive Independence Trigger is a premium drop-in trigger upgrade designed to improve trigger feel, consistency, and shooting control on compatible AR-15 rifles. It is used to replace a standard factory trigger with a cleaner,...
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  • TacFire BU-308-12 308 PST Upper / Bolt Carrier Group - 12 Inch Barrel

    TacFire BU-308-12 308 PST Upper / Bolt Carrier Group - 12 Inch Barrel

    TacFire
    $484.99
    Enhance your AR-10 platform with the TacFire BU-308-12 308 PST Upper. Designed for easy installation, this upper assembly features a 12-inch barrel, making it suitable for a variety of shooting applications from range days to tactical use. The included...
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  • TacFire Pass-through Upper Receiver / Bolt Carrier Group / 308 Caliber

    TacFire Pass-through Upper Receiver / Bolt Carrier Group / 308 Caliber

    TacFire
    $484.99
    Upgrade your firearm with the TacFire upper receiver, designed specifically for .308 caliber rifles. This upper includes a bolt carrier group, providing a ready-to-install assembly that simplifies your build or upgrade process. Crafted for durability and...
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  • Ruger AR Small Parts Kit / Model 90992

    Ruger AR Small Parts Kit / Model 90992

    Ruger
    $10.99
    The Ruger AR Small Parts Kit Model 90992 provides essential components for firearm maintenance and repair. Designed for compatibility with AR-style rifles, this kit includes various small parts necessary to keep your firearm functioning reliably. Whether...
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  • Ruger AR Lower Parts Kit No Trigger or Grip Model 91001

    Ruger AR Lower Parts Kit No Trigger or Grip Model 91001

    Ruger
    $43.99
    RUG 91001 AR LOWER PARTS KIT NO TRIG/GRIP The Ruger AR Lower Parts Kit No Trigger or Grip is designed to complete your AR-style build with essential internal components. This kit includes the core parts needed for the lower receiver assembly, allowing...
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  • Ruger AR Lower Parts Kit with GI Trigger and A2 Pistol Grip

    Ruger AR Lower Parts Kit with GI Trigger and A2 Pistol Grip

    Ruger
    $72.99
    RUG 91002 AR LOWER PARTS KIT/AR GI TRG/A2 PST GRIP The Ruger AR Lower Parts Kit is designed to complete your AR-style firearm with essential internal components. This kit includes a GI-style trigger and an A2 pistol grip, providing reliable parts for a...
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  • Ruger AR Buffer Tube Kit for AR-15 Platform Rifles

    Ruger AR Buffer Tube Kit for AR-15 Platform Rifles

    Ruger
    $40.99
    The Ruger AR Buffer Tube Kit is a practical replacement or upgrade kit designed for compatible AR-platform rifles and carbines. Built to support proper stock installation and reliable cycling, this kit provides essential rear-end receiver components for...
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  • Luth-AR BC-A-223T Full Assembly Bolt Carrier Group for .223 Takedown / Tin Finish

    Luth-AR BC-A-223T Full Assembly Bolt Carrier Group for .223 Takedown / Tin Finish

    Luth-AR
    $140.99
      The Luth-AR BC-A-223T full assembly bolt carrier group (BCG) is designed for reliable operation in .223 Takedown rifles. Constructed with precision and durability in mind, this bolt carrier group ensures smooth cycling and consistent performance...
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  • KAK Industry AR-15 Basic Build Lower Parts Kit

    KAK Industry AR-15 Basic Build Lower Parts Kit

    KAK INDUSTRY
    $25.99
    The KAK Industry AR-15-LP-KT-02 is a comprehensive lower parts kit designed to simplify your firearm assembly process. This kit includes essential components needed to build or upgrade your AR-15, ensuring reliable performance and ease of installation...
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  • KAK Industry AR-15 Missing Parts Kit

    KAK Industry AR-15 Missing Parts Kit

    KAK INDUSTRY
    $8.99
    KAK AR15-LP-KT-04 AR-15 MISSING PARTS KIT The KAK Industry AR-15 Missing Parts Kit is designed to complete your AR-15 rifle by providing essential components that may be missing or need replacement. This kit is compatible with standard AR-15 platforms...
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  • KAK Industry MO-304-1002-001 Carrier Completion Kit Phosphated

    KAK Industry MO-304-1002-001 Carrier Completion Kit Phosphated

    KAK INDUSTRY
    $12.99
    KAK MO-304-1002-001 CARRIER COMPLETION KIT PHOS The KAK Industry MO-304-1002-001 Carrier Completion Kit is designed to provide essential components for complete firearm assembly and maintenance. Compatible with AR-style rifles, this kit ensures reliable...
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  • KAK Industry MO-504-1010-001 5.56 NATO Field Repair Kit

    KAK Industry MO-504-1010-001 5.56 NATO Field Repair Kit

    KAK INDUSTRY
    $58.99
    KAK MO-504-1010-001 5.56 NATO FIELD REPAIR KIT The KAK Industry MO-504-1010-001 5.56 NATO Field Repair Kit is designed for quick and efficient maintenance of your rifle in the field. This comprehensive kit provides essential firearm parts to ensure your...
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  • KAK Industry MO-304-1010-003 Carrier Completion Kit for Firearms

    KAK Industry MO-304-1010-003 Carrier Completion Kit for Firearms

    KAK INDUSTRY
    $16.99
    KAK MO-304-1010-003 CARRIER COMPLETION KIT The KAK Industry MO-304-1010-003 Carrier Completion Kit is a high-quality replacement part designed for firearm assembly and maintenance. This kit includes essential components to ensure proper function and...
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  • KAK Industry M16 5.56 NATO Bolt Carrier Group

    KAK Industry M16 5.56 NATO Bolt Carrier Group

    KAK INDUSTRY
    $116.99
    KAK MO-425-0512-001 M16 5.56 NATO BCG The KAK Industry MO-425-0512-001 bolt carrier group is a high-quality firearm component designed for M16 rifles chambered in 5.56 NATO. This bolt carrier group (BCG) is engineered to provide reliable cycling and...
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  • KAK Industry M16 5.56 K-Spec Bolt Carrier Group

    KAK Industry M16 5.56 K-Spec Bolt Carrier Group

    KAK INDUSTRY
    $188.99
    KAK MO-425-3312-001 M16 5.56 K-SPEC BCG The KAK Industry MO-425-3312-001 M16 5.56 K-Spec Bolt Carrier Group is a high-performance firearm component designed for reliable cycling and enhanced durability in AR-15 and M16 platforms chambered in 5.56 NATO...
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  • KAK Industry MO-425-0512-003 M16 5.56 K-Spec Chrome/Phosphate Bolt Carrier Group

    KAK Industry MO-425-0512-003 M16 5.56 K-Spec Chrome/Phosphate Bolt Carrier Group

    KAK INDUSTRY
    $179.99
    KAK MO-425-0512-003 M16 5.56 K-SPEC CHRM/PHOS BCG The KAK Industry MO-425-0512-003 M16 5.56 K-Spec Bolt Carrier Group is designed for reliable performance in AR-15 style rifles chambered in 5.56 NATO. Crafted for durability and smooth operation, this...
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  • KAK Industry MO-425-0506-003 M16 5.56 K-Spec NP3 Bolt Carrier Group

    KAK Industry MO-425-0506-003 M16 5.56 K-Spec NP3 Bolt Carrier Group

    KAK INDUSTRY
    $242.99
    KAK MO-425-0506-003 M16 5.56 K-SPEC NP3 BCG The KAK Industry MO-425-0506-003 M16 5.56 K-Spec NP3 Bolt Carrier Group is designed to enhance the reliability and performance of your AR-15 style rifle chambered in 5.56 NATO. Crafted for durability and...
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  • KAK Industry M16 5.56 K-Spec Chrome Bolt Carrier Group

    KAK Industry M16 5.56 K-Spec Chrome Bolt Carrier Group

    KAK INDUSTRY
    $220.99
    KAK MO-425-0505-002 M16 5.56 K-SPEC CHROME BCG The KAK Industry MO-425-0505-002 M16 5.56 K-Spec Chrome Bolt Carrier Group is designed for reliable performance in AR-15 style rifles chambered in 5.56 NATO. Crafted with precision and durability in mind,...
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  • KAK Industry MO-KAK-9MM Enhanced Bolt Carrier Group for 9mm Pistols and Carbines

    KAK Industry MO-KAK-9MM Enhanced Bolt Carrier Group for 9mm Pistols and Carbines

    KAK INDUSTRY
    $134.99
    KAK MO-KAK-9MM KAK 9MM ENHANCED BCG The KAK Industry MO-KAK-9MM Enhanced Bolt Carrier Group is designed for reliable performance in 9mm firearms, including pistols and carbines. Built with precision engineering, it offers enhanced durability and...
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  • KAK Industry MO-425-0510-002 M16 5.56 K-Spec Clear Anodize

    KAK Industry MO-425-0510-002 M16 5.56 K-Spec Clear Anodize

    KAK INDUSTRY
    $229.99
    KAK MO-425-0510-002 M16 5.56 K-SPEC CLEAR ANODIZE The KAK Industry MO-425-0510-002 M16 5.56 K-Spec is a high-quality firearm part designed for AR-15 style rifles chambered in 5.56 NATO. Featuring a clear anodized finish, this component offers durability...
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  • KAK Industry MO-425-0507-003 M16 5.56 K-Spec PVD FDE Bolt Carrier Group

    KAK Industry MO-425-0507-003 M16 5.56 K-Spec PVD FDE Bolt Carrier Group

    KAK INDUSTRY
    $215.99
    KAK MO-425-0507-003 M16 5.56 K-SPEC PVD FDE BCG The KAK Industry MO-425-0507-003 is a high-performance bolt carrier group designed for M16-style rifles chambered in 5.56 NATO. Engineered for durability and reliable cycling, this BCG features a PVD...
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  • KAK Industry M16 5.56 C158 Chrome/Phosphate Bolt Carrier Group

    KAK Industry M16 5.56 C158 Chrome/Phosphate Bolt Carrier Group

    KAK INDUSTRY
    $125.99
    KAK MO-425-3312-003 M16 5.56 C158 CHRM/PHOS BCG The KAK Industry MO-425-3312-003 Bolt Carrier Group (BCG) is designed for M16 rifles chambered in 5.56 NATO, offering reliable cycling and enhanced durability. Constructed with chrome and phosphate...
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  • KAK Industry MO-425-0505-003 M16 5.56 K-Spec Sidevent Chrome

    KAK Industry MO-425-0505-003 M16 5.56 K-Spec Sidevent Chrome

    KAK INDUSTRY
    $220.99
    KAK MO-425-0505-003 M16 5.56 K-SPEC SIDEVENT CHRM The KAK Industry MO-425-0505-003 is a high-quality sidevent chrome fire control part designed for M16 rifles chambered in 5.56 NATO. Built for durability and precision, this component enhances firearm...
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  • KAK Industry AR-15 Bolt for 5.56 and 300 Blackout with Phosphate Finish

    KAK Industry AR-15 Bolt for 5.56 and 300 Blackout with Phosphate Finish

    KAK INDUSTRY
    $80.99
    KAK MO-303-0502-011 AR-15 BOLT 556/300BO PHOS The KAK Industry MO-303-0502-011 AR-15 bolt is a high-quality firearm component designed to ensure reliable performance and durability in your rifle. Compatible with 5.56 NATO and 300 Blackout calibers, this...
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  • KAK Industry M16 224 Valkyrie / 68 SPC Bolt Carrier Group

    KAK Industry M16 224 Valkyrie / 68 SPC Bolt Carrier Group

    KAK INDUSTRY
    $125.99
    KAK MO-425-0512-019 M16 224 VALKYRIE/68SPC BCG The KAK Industry M16 224 Valkyrie / 68 SPC Bolt Carrier Group is a high-quality firearm component designed for reliable cycling and optimal performance in compatible rifle platforms. Crafted for precision...
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