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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  • Black Rain Low Profile .936 Gas Block

    Black Rain Low Profile .936 Gas Block

    Black Rain
    $29.99
    BRO LP936 .936 LOW PROFILE GAS BLOCK The Black Rain LP936 .936 low profile gas block is designed to provide a secure and reliable fit for your AR-15 or similar rifles. Constructed with precision and durability in mind, this gas block is ideal...
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  • Black Rain LP936A .936 Adjustable Low Profile Gas Block

    Black Rain LP936A .936 Adjustable Low Profile Gas Block

    Black Rain
    $40.99
    BRO LP936A .936 ADJ LOW PROF GAS BLOCK The Black Rain LP936A .936 Adjustable Low Profile Gas Block is a precision component designed for AR-15 style rifles. This gas block helps regulate gas flow from the barrel to the action, ensuring reliable...
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  • Proof Research PR15 .223 Wylde Rifle Barrel with 11.5 Inch Length and 5/8-24 Thread Pattern

    Proof Research PR15 .223 Wylde Rifle Barrel with 11.5 Inch Length and 5/8-24 Thread Pattern

    PROOF RESEARCH
    $649.99
    PROOF 143360 PR15 223WYLDE 11.5 5/8-24 7TW The Proof Research PR15 .223 Wylde rifle barrel is designed for precision shooting and reliable performance. Crafted from high-quality materials, this barrel offers excellent accuracy and durability, making it...
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  • Proof Research PR15 .223 Wylde Rifle Barrel - 14.5 inch, 5/8-24 Thread

    Proof Research PR15 .223 Wylde Rifle Barrel - 14.5 inch, 5/8-24 Thread

    PROOF RESEARCH
    $649.99
    PROOF 143377 PR15 223WYLDE 14.5 5/8-24 7TW The Proof Research PR15 series rifle barrel is designed for precision shooters seeking reliable performance and durability. Crafted with advanced materials, this barrel offers excellent accuracy and...
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  • Reptilia LLC CQG Grip No Backstrap

    Reptilia LLC CQG Grip No Backstrap

    REPTILLA,LLC
    $19.99
    REPTILIA 100178 CQG GRIP - NO BACKSTRAP The Reptilia LLC CQG Grip is a high-quality firearm accessory designed to enhance grip control and stability during shooting. Crafted with precision, this grip provides a secure hold, improving accuracy and...
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  • WOOX LLC M-LOK Angled Fore Grip Walnut

    WOOX LLC M-LOK Angled Fore Grip Walnut

    WOOX LLC
    $79.99
    Woox SH.AGR001.01 Angled Grip Walnut Wood The WOOX LLC M-LOK Angled Fore Grip is a compact and reversible tactical accessory designed for enhanced weapon control. Crafted from premium American Walnut, this fore grip combines durability with a refined...
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  • Battenfeld Caliber Bipod Adapter Pic Rail to M-LOK

    Battenfeld Caliber Bipod Adapter Pic Rail to M-LOK

    Battenfeld
    $15.99
    CALD 1242499 BIPOD ADAPTER PIC RAIL TO MLOK The Battenfeld Caliber Bipod Adapter is designed to enhance the versatility of your firearm by providing a reliable connection point for bipods. This adapter allows you to attach a bipod directly to your...
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  • AREA 419 Single MLOK ArcLock for AR-15 Rifles

    AREA 419 Single MLOK ArcLock for AR-15 Rifles

    AREA 419 FIREARMS
    $40.99
    AREA 419 419-ALK-SMLOK SINGLE MLOK ARCALOCK The AREA 419 419-ALK-SMLOK is a high-quality, lightweight accessory designed for AR-15 rifles with MLOK handguards. Crafted with precision, this single MLOK ArcLock provides a secure attachment point for...
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  • Magne-Tech Lock-In Picatinny Accessory Mount Set

    Magne-Tech Lock-In Picatinny Accessory Mount Set

    MAGNE-TECH
    $188.99
    MAGNE-TECH MGN-LOCK-PIC-ACC-SET LOCKIN PIC ACC MNT The Magne-Tech MGN-LOCK-PIC-ACC-SET is a versatile accessory mount designed to enhance the functionality of Picatinny rails on firearms. This set provides a secure and stable platform for attaching a...
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  • Magne-Tech Pic Accessory Mount 6 inches

    Magne-Tech Pic Accessory Mount 6 inches

    MAGNE-TECH
    $116.99
    MAGNE-TECH MGN-PIC-6ACC-MNT PIC ACC MOUNT 6" The Magne-Tech Pic Accessory Mount is a versatile 6-inch mounting solution designed to securely attach accessories to your firearm or tactical equipment. Crafted for durability and stability, this mount...
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  • Magne-Tech Magnetic Belt Clip

    Magne-Tech Magnetic Belt Clip

    MAGNE-TECH
    $98.99
    MAGNE-TECH MGN-BLT-CLIP MAGNETIC BELT CLIP The Magne-Tech Magnetic Belt Clip is a versatile accessory designed to securely hold your firearm or gear on your belt. Constructed with strong magnetic technology, this clip provides quick and reliable...
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  • Magne-Tech Rifle Wall Mount

    Magne-Tech Rifle Wall Mount

    MAGNE-TECH
    $112.99
    MAGNE-TECH MGN-FLAT-MNT-RFL RIFLE WALL MOUNT The Magne-Tech MGN-FLAT-MNT-RFL Rifle Wall Mount is a practical solution for safely storing and displaying your rifles. Designed for easy installation, this mount securely holds your firearm against the...
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  • CMMG Zeroed AR 15 Drop-In Trigger

    CMMG Zeroed AR 15 Drop-In Trigger

    CMMG
    $191.99
    CMMG AR 15 Zeroed Black Drop-In The CMMG AR 15 Zeroed Drop-In Trigger is designed to enhance the firing experience by providing a smooth, consistent trigger pull. This upgrade is ideal for shooters seeking improved accuracy and reliability without...
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  • White Label Armory AR-15 Extractor Spring

    White Label Armory AR-15 Extractor Spring

    White Label Armory
    $9.99
    White Label Armory WLA-PAC-3004-05 Extractor Spring AR-15 Nitride The White Label Armory AR-15 Extractor Spring is a high-quality replacement part designed to ensure reliable cycling and extraction in your firearm. Crafted from durable steel and...
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  • White Label Armory AR-15 Firing Pin Retainer Kit, 10 Pack

    White Label Armory AR-15 Firing Pin Retainer Kit, 10 Pack

    White Label Armory
    $19.99
    White Label Armory WLA-PAC-3009-10 Firing Pin Retainer AR-15 Black Steel 10 Pack The White Label Armory WLA-PAC-3009-10 is a set of durable steel firing pin retainers designed specifically for AR-15 rifles. Each retainer in this 10-pack offers a...
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  • Timney Triggers Stevens 334 Trigger

    Timney Triggers Stevens 334 Trigger

    Timney Triggers
    $131.99
    Timney Triggers 334 Stevens 334 Blue Single-Stage Curved Fits Savage The Timney Triggers Stevens 334 Trigger is a high-performance replacement part designed for the Stevens 334 rifle, ideal for hunters seeking precision and reliability. Crafted with...
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  • BREEK Sledgehammer AR-15 Charging Handle

    BREEK Sledgehammer AR-15 Charging Handle

    BREEK
    $69.99
    Breek Arms BRK6015 Sledgehammer Charging Handle Mil Spec AR15/M16 Rifles Black 7075-T6 Aluminum The BREEK Sledgehammer AR-15 Charging Handle is designed for shooters seeking reliable and effortless rifle operation, particularly when running suppressors...
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  • BREEK Warhammer Mod2 Mil-Spec AR-15/M16 Rifle Handguard in Gray Aluminum

    BREEK Warhammer Mod2 Mil-Spec AR-15/M16 Rifle Handguard in Gray Aluminum

    BREEK
    $49.99
    Breek Arms BRK522MGRAY Warhammer Mod2 Mil Spec AR15/M16 Rifles Gray Aluminum The BREEK Warhammer Mod2 Mil-Spec AR-15/M16 handguard is crafted from durable 7075-T6 aluminum, offering a reliable and lightweight option for your rifle. Its Type 3 hard...
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  • LANTAC USA M-Spec Upper Parts Kit for AR-15

    LANTAC USA M-Spec Upper Parts Kit for AR-15

    LANTAC USA
    $23.99
    LANTAC 01-PKIT-UP M-SPEC UPK. AR15 The LANTAC USA M-Spec Upper Parts Kit is designed to provide everything needed for building or upgrading your AR-15 rifle. This comprehensive kit includes high-quality components that ensure reliable performance and...
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  • BATTLEARMS Development AR15 Carbine Buffer Assembly

    BATTLEARMS Development AR15 Carbine Buffer Assembly

    Battle Arms Development
    $14.99
    Battle Arms Development AR15BUFFERC Carbine Buffer Tube Silver AR15/M16 The Battle Arms Development AR15 Carbine Buffer Assembly is designed to provide reliable performance in AR15/M16 carbines equipped with a collapsible stock. Crafted with precision...
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  • LBE Unlimited MIL-Spec 4-Position Buffer Tube

    LBE Unlimited MIL-Spec 4-Position Buffer Tube

    LBE Unlimited
    $29.99
    LBE MBT04POS MIL SPEC 4 POS BUF TUBE BUFFER The LBE Unlimited MIL-Spec 4-Position Buffer Tube is designed for reliable performance and compatibility with AR-15 style rifles. Constructed from high-quality materials, this buffer tube offers...
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  • LBE Unlimited ARGTC-BLK Carbon Length Gas Tube with Melonite Finish

    LBE Unlimited ARGTC-BLK Carbon Length Gas Tube with Melonite Finish

    LBE Unlimited
    $11.99
    LBE ARGTC-BLK CARB LNGTH GASTUBE MELONITE The LBE Unlimited ARGTC-BLK carbon fiber length gas tube is designed to enhance the performance and reliability of your firearm. Crafted from high-quality materials, this gas tube features a durable...
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  • LBE Unlimited Low Profile Gas Block with Carbine Gas Tube for AR-15

    LBE Unlimited Low Profile Gas Block with Carbine Gas Tube for AR-15

    LBE Unlimited
    $41.99
    LBE ARLGB-CBLK LOW PRO GAS BLOCK W/CAR GASTUBE The LBE Unlimited ARLGB-CBLK is a low profile gas block designed for AR-15 rifles, offering a streamlined profile for a clean and lightweight build. Crafted from durable materials, this gas block ensures...
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  • LBE Unlimited Low Profile Gas Block with PST Gas Tube for AR-15

    LBE Unlimited Low Profile Gas Block with PST Gas Tube for AR-15

    LBE Unlimited
    $41.99
    LBE ARLGB-PBLK LOW PRO GAS BLOCK W/PST GASTUBE The LBE Unlimited ARLGB-PBLK is a precision-engineered low profile gas block designed specifically for AR-15 rifles. Crafted from durable materials, this gas block provides a secure fit and reliable...
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  • Strike Mini HandStop with Cable Management System for M-LOK, Flat Dark Earth

    Strike Mini HandStop with Cable Management System for M-LOK, Flat Dark Earth

    Strike
    $12.99
    Strike Industries AR-CMS-MHS-FDE Mini Handstop Flat Dark Earth Polymer The Strike Mini HandStop with Cable Management System is a compact and lightweight firearm accessory designed to improve weapon control and wire organization. Crafted from durable SI...
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  • Grovtec US Inc G-Stop GTHM321 Reversible Hand Stop Aluminum Black

    Grovtec US Inc G-Stop GTHM321 Reversible Hand Stop Aluminum Black

    Grovtec US Inc
    $39.99
    GrovTec US Inc GTHM321 G-Stop Reversible Hand Stop Black Anodized Aluminum The Grovtec US Inc G-Stop GTHM321 is a versatile and durable hand stop designed for tactical and hunting rifles. Crafted from lightweight anodized aluminum, this hand stop...
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  • Franklin Armory Libertás Built Lower Receiver Model 0020009BLK Multi Caliber Firearm

    Franklin Armory Libertás Built Lower Receiver Model 0020009BLK Multi Caliber Firearm

    Franklin Armory
    $431.99
    Franklin Armory 0020009BLK Libertas Multi Aluminum Black Hardcoat Anodize The Franklin Armory Libertás Built Lower Receiver offers versatile compatibility with multi-caliber firearms, making it suitable for a variety of shooting applications. Featuring...
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  • Lead & Steel LLC LS556PEN-MID-14.5 AR-15 Barrel 14.5 Inch Mid-Length 1:7 Twist M4 Feed Ramps Black Nitride Finish

    Lead & Steel LLC LS556PEN-MID-14.5 AR-15 Barrel 14.5 Inch Mid-Length 1:7 Twist M4 Feed Ramps Black Nitride Finish

    LEAD & STEEL LLC
    $110.99
    Lead & Steel Llc LS556PEN-MID-14.5 5.56mm 14.50" Pencil Profile Features M4 Feed Ramps The Lead & Steel LLC LS556PEN-MID-14.5 AR-15 barrel is crafted from durable 4150 Chrome Moly Vanadium steel, ensuring reliable performance and longevity...
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  • Lead & Steel LLC AR-9 Barrel 16 Inch Chrome Moly Vanadium with Black Nitride Finish

    Lead & Steel LLC AR-9 Barrel 16 Inch Chrome Moly Vanadium with Black Nitride Finish

    LEAD & STEEL LLC
    $110.99
    Lead & Steel Llc LS9MM16-28 AR9 9mm 16" The Lead & Steel LLC AR-9 barrel is crafted from premium 4150 Chrome Moly Vanadium steel, ensuring durability and reliability for your firearm. Measuring 16 inches with a 1:10 twist rate, this barrel is...
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  • Luth-AR 308-BS-11 Buffer Body for AR-10 Rifle in 308/7.62mm

    Luth-AR 308-BS-11 Buffer Body for AR-10 Rifle in 308/7.62mm

    Luth-AR
    $33.99
    Luth-ar 308-BS-11 Buffer Body 308/7.62mm Rifle AR-10 The Luth-AR 308-BS-11 buffer body is designed specifically for AR-10 style rifles chambered in 308 Winchester and 7.62mm. Crafted for durability and precise fit, this buffer body ensures reliable...
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  • LUTH-AR LRPK-1 Lower Receiver Parts Kit AR15 Caliber 223 Rem/5.56 NATO

    LUTH-AR LRPK-1 Lower Receiver Parts Kit AR15 Caliber 223 Rem/5.56 NATO

    Luth-AR
    $55.99
    Luth-ar LRPK-1 Lower Receiver Parts Kit AR-15 .223 Rem/5.56 NATO Black The LUTH-AR LRPK-1 lower receiver parts kit provides all the essential components needed to fully assemble a stripped AR-15 lower receiver. This comprehensive kit includes a trigger,...
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  • LUTH-AR LR-BC308A 308 Paddle Bolt Catch Assembly

    LUTH-AR LR-BC308A 308 Paddle Bolt Catch Assembly

    Luth-AR
    $25.99
    Luth-ar LR-BC308A The Paddle Bolt Catch Assembly Black Steel The LUTH-AR LR-BC308A 308 Paddle Bolt Catch Assembly is designed for quick and reliable bolt manipulation in high-pressure situations. Featuring a large paddle surface, this steel bolt catch...
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