AR uppers are the upper receiver assemblies used to house key components such as the barrel, handguard, and bolt carrier group interface on compatible AR-platform rifles. They are commonly used in new builds, caliber changes, barrel length changes, repairs, and overall rifle upgrades. Different AR upper configurations can affect handling, compatibility, weight, and intended use depending on the setup. This category includes AR uppers built for proper fit, dependable function, and practical everyday performance.
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Redfield STT 10.5-inch Everything But Low Rise Scope Mount in Black
REDFIELD$980.99STT EBTLK-10.5-BLK STT 10.5"EVERYTHING BUT LOWR Redfield STT 10.5-inch Everything But Low Rise Scope Mount in BlackThe Redfield STT 10.5-inch scope mount is designed to provide a secure and stable platform for mounting optics on your firearm. Crafted... -
Redfield STT 11.5-Inch Everything But Lower Black
REDFIELD$980.99STT EBTLK-11.5-BLK STT 11.5"EVERYTHING BUT LOWR Redfield STT 11.5-Inch Everything But Lower BlackThe Redfield STT 11.5-Inch Everything But Lower (EBTLK-11.5-BLK) is a versatile firearm component designed to enhance your rifle's performance. Crafted... -
Redfield STT 16-Inch Everything But Lower Rifle Barrel Black
REDFIELD$980.99STT EBTLK-16-BLK STT 16" EVERYTHING BUT LOWR Redfield STT 16-Inch Everything But Lower Rifle BarrelThe Redfield STT 16-Inch barrel is designed for precision and durability, making it suitable for various firearm applications. Crafted to meet high... -
Faxon Firearms Duty 5.56 Rifle Barrel 16 Inch Stainless Steel
FAXON FIREARMS$797.99FAXON FXURGD55616SA13CSR DUTY 556 16 SR UPP Faxon Firearms Duty 5.56 Rifle Barrel The Faxon Firearms FXURGD55616SA13CSR is a high-quality 16-inch rifle barrel designed for reliable performance and durability. Crafted for AR-15 style rifles, this... -
FAXON Firearms Match 6ARC 16-inch Stainless Rifle Upper
FAXON FIREARMS$863.99FAXON FXURGM6A16GA15CSR MATCH 6ARC 16 SR UPP FAXON Firearms Match 6ARC 16-inch Stainless Rifle Upper The FAXON FXURGM6A16GA15CSR is a high-quality rifle upper designed for precision shooting and reliable performance. Crafted with attention to... -
FAXON Firearms FXURGM6A125GA1075CSR Match .6 Arc 12.5-inch Rifle Barrel
FAXON FIREARMS$863.99FAXON FXURGM6A125GA1075CSR MATCH 6ARC 12.5 SR UPP FAXON Firearms FXURGM6A125GA1075CSR Match .6 Arc Rifle BarrelThe FAXON Firearms FXURGM6A125GA1075CSR is a precision-made rifle barrel designed specifically for demanding shooters and firearm enthusiasts... -
Faxon Firearms Match 65 Grain 16-Round Slim Rifle Magazine
FAXON FIREARMS$863.99FAXON FXURGM65G16GA15CSR MATCH 65GR 16 SR UPP Faxon Firearms Match 65 Grain 16-Round Slim Rifle Magazine This magazine is designed for reliable feeding and durability in modern sporting rifles. It features a slim profile to fit seamlessly into your... -
One Horse LLC AR-15 A3 Stripped Upper Receiver in White
One Horse LLC$53.99ONE OH-UR01 AR15 A3 STRIPPED UPPER RCVER WHITE The One Horse LLC OH-UR01 AR-15 A3 stripped upper receiver is a versatile component designed for building or customizing your AR-15 platform. Crafted for durability and precision, this upper provides a... -
One Horse LLC OH-UPK01 Upper Parts Kit with Dust Cover and Forward Assembly
One Horse LLC$17.99ONE OH-UPK01 UPPER PARTS KIT DST CVR/FRWRD ASST The One Horse LLC OH-UPK01 Upper Parts Kit is a comprehensive set designed to enhance or replace key components of your firearm's upper receiver assembly. This kit includes essential parts such as a dust... -
One Horse LLC 15-inch M-LOK Handguard
One Horse LLC$61.99ONE OH-HG01 15" M-LOK HANDGUARD The One Horse LLC OH-HG01 is a 15-inch M-LOK handguard designed for AR-15 style rifles. Crafted to provide a versatile and lightweight solution, this handguard offers enhanced control and customization options for... -
One Horse LLC OH-HG02 10-inch M-LOK Handguard
One Horse LLC$57.99ONE OH-HG02 10" M-LOK HANDGUARD The One Horse LLC OH-HG02 is a 10-inch M-LOK handguard designed for enhanced firearm handling and customization. Crafted from durable materials, this handguard provides a secure and stable platform for mounting... -
One Horse LLC OH-HG03 7-Inch M-LOK Handguard
One Horse LLC$56.99ONE OH-HG03 7" M-LOK HANDGUARD The One Horse LLC OH-HG03 7-Inch M-LOK Handguard is a durable and lightweight accessory designed to enhance the functionality and customization of your rifle. Crafted from high-quality materials, this handguard provides... -
Primary Weapons MK1-M2U-6ARC 14.5-inch Upper Assembly
Primary Weapons$1,399.99PWS MK1-M2U-6ARC14 MK114 MOD2 UPPR 6ARC 14.5 The Primary Weapons MK1-M2U-6ARC 14.5-inch upper assembly is designed to enhance your firearm's performance and reliability. Crafted with precision, this upper includes the MK114 MOD2 upper receiver and... -
Primary Weapons MK1-M2U-6ARC 18 Upper
Primary Weapons$1,399.99PWS MK1-M2U-6ARC18NC MK118 MOD2 UPPR 6ARC 18 The Primary Weapons MK1-M2U-6ARC 18 Upper is a high-performance firearm component designed for reliable and precise shooting. Crafted to enhance your rifle's capabilities, this upper receiver features... -
LANTAC USA M-Spec Upper Parts Kit for AR-15
LANTAC USA$23.99LANTAC 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... -
Luth-AR UR-01-E3-SA Assembled A1 Upper Receiver for AR-15 223 Rem/5.56 NATO
Luth-AR$202.99Luth-ar UR-01-E3-SA A1 Upper Receiver 223/5.56mm Aluminum Black Hardcoat Anodize Receiver The Luth-AR UR-01-E3-SA assembled A1 upper receiver is crafted from durable 7075-T6 aluminum forgings, precision-machined to meet military specifications. This... -
LUTH-AR UR-01-M16 Stripped M16 A1 Upper Receiver with Black Hardcoat Anodize and 223 Rem/5.56 NATO
Luth-AR$164.99Luth-ar UR-01-M16 A1 Stripped Upper Receiver 223/5.56mm Aluminum Black Hardcoat Anodize Receiver for M16 The LUTH-AR UR-01-M16 is a high-quality stripped upper receiver modeled after the classic M16 A1 design, renowned for its lightweight and reliable... -
LUTH-AR 308-FTT-EA1 Aluminum A3 Upper Receiver for .308 Cal with Picatinny Rail and Hard Coat Anodized Finish
Luth-AR$169.99Luth-ar 308-FTT-EA1 A3 Upper Receiver 308Cal Aluminum Black Hardcoat Anodize Receiver The LUTH-AR 308-FTT-EA1 aluminum A3 upper receiver is designed for reliable performance and durability in .308 caliber rifles. Machined from high-quality 6061-T6... -
TacFire BU-308-10 10-Inch .308 Winchester Built Upper Receiver with BCG
TacFire$485.99TACFIRE BU-308-10 10" 308W BUILT UPPER W/BCG The TacFire BU-308-10 upper receiver is designed for reliable performance with a 10-inch barrel chambered in .308 Winchester. Crafted with precision, this upper includes a bolt carrier group (BCG) for easy... -
DPMS Panther Arms 16 Inch 5.56 NATO Chrome Moly Vanadium M4 Barrel with 13.5 Inch M-LOK Handguards
DPMS PANTHER ARMS$379.99DPMS 16" 5.56 NATO 13.5" M-LOK Upper / DP51655120177 The DPMS DP51655120177 complete upper is built for shooters looking for a ready-to-install AR-platform upper chambered in 5.56 NATO. Featuring a 16-inch barrel and a 13.5-inch M-LOK handguard, this... -
DPMS Panther Arms Kitty Kat 556 AR-15 Rifle Upper & Barrel Kit 5.56 NATO 7.5 inch Black Nitride
DPMS PANTHER ARMS$389.99Dpms Panther Arms DP51655207090 Kitty Kat 5.56 NATO 7.50" Black Nitride Barrel Aluminum DPMS 6.5" Quad Rail Handguard The DPMS Panther Arms Kitty Kat 556 AR-15 upper receiver and barrel kit is designed for shooters seeking a compact and reliable firearm... -
![LUTH-AR HG-LW15M LW Palm Handguard Vented 15" M-LOK Aluminum Black Hardcoat Anodize](https://cdn11.bigcommerce.com/s-vpqoeli6us/images/stencil/600x600/products/3408/7433/5612480__35956.1775013279.jpg?c=1 "LUTH-AR HG-LW15M LW Palm Handguard Vented 15" M-LOK Aluminum Black Hardcoat Anodize")
LUTH-AR HG-LW15M LW Palm Handguard Vented 15" M-LOK Aluminum Black Hardcoat Anodize
Luth-AR$95.99Luth-ar HG-LW15M Palm Handguard Aluminum Black Hardcoat Anodize Receiver The LUTH-AR HG-LW15M LW Palm Handguard is designed for use with AR rifles, offering a durable and lightweight aluminum construction. The vented design enhances airflow and heat... -
LUTH-AR 308-HG-WB15 308 Widebody Hand Guard with Picatinny Rail and M-LOK Slots
Luth-AR$108.99Luth-ar 308-HG-WB15 Widebody Handguard 308/7.62mm The LUTH-AR 308-HG-WB15 308 Widebody Hand Guard is designed to provide a stable platform for precision shooting and support accessories. Its expanded base surface enhances stability when shooting off... -
Radian Weapons R0898 Model 1 Complete Upper 6mm ARC 14.5" Black Nitride Steel Barrel with M-LOK Handguards
RADIAN WEAPONS$2,079.99Radian Weapons R0898 Model 1 Complete Upper 6mmARC Black Nitride Steel The Radian Weapons R0898 Model 1 Complete Upper is designed for precision shooters and firearm enthusiasts seeking reliable performance in a 6mm ARC platform. Featuring a durable... -
Radian Weapons R0903 Model 1 Complete Upper 6mm ARC 18 Inch Black Nitride Steel Barrel
RADIAN WEAPONS$2,169.99Radian Weapons R0903 Model 1 Complete Upper 6mmARC Black Nitride Steel The Radian Weapons R0903 Model 1 Complete Upper is designed for precision shooting with a durable 6mm ARC caliber and an 18-inch steel barrel finished in black nitride. This upper is... -
HK 51001892 MR762 A4 16 Upper Receiver Assembly 7.62x51mm Cold Hammer Forged Steel
HK$2,649.99HK 51001892 A4 Complete Upper Receiver Assembly 7.62x51mm Cold Hammer Forged Steel 16" The HK 51001892 MR762 A4 16 Upper Receiver Assembly is designed for reliable performance with 7.62x51mm caliber firearms. Crafted from cold hammer forged steel, this... -
HK 51001919 MR762 A4 13 Inch Complete Upper Receiver Assembly in 7.62x51mm
HK$2,649.99HK 51001919 A4 Complete Upper Receiver Assembly 7.62x51mm Cold Hammer Forged Steel 13" The HK 51001919 MR762 A4 13 Inch Complete Upper Receiver Assembly is designed for reliable performance with a 7.62x51mm caliber. Crafted from cold hammer forged steel,... -
TacFire HG27-10 10-Inch M-LOK Full Rail Handguard with QD Mount
TacFire$33.99TACFIRE HG27-10 10" MLOK F-FLT HNDGRD FULL RL QD The TacFire HG27-10 is a 10-inch M-LOK free-floating handguard designed for reliable attachment and enhanced weapon customization. Constructed for durability and ease of installation, this handguard... -
DPMS Panther Arms 16-inch .308 NIT M-LOK Upper with Bolt Carrier Group and Charging Handle
DPMS PANTHER ARMS$574.99DPMS DP51655135005 16"308 NIT MLOK UPPER BCG&CH DPMS Panther Arms 16-inch .308 NIT M-LOK Upper with Bolt Carrier Group and Charging Handle The DPMS DP51655135005 is a 16-inch upper assembly designed for .308 caliber rifles, featuring a Nitride... -
Midwest Industries Inc MI-CRMHD-10.5 Combat Rail HD M-LOK 10.5 Inch
MIDWEST INDUSTRIES INC$254.99MIDWEST MI-CRMHD-10.5 COMBAT RAIL HD MLOK 10.5 Midwest Industries Inc MI-CRMHD-10.5 Combat Rail HD M-LOK 10.5 Inch is a heavy-duty handguard designed for AR-style rifles, featuring a 10.5-inch length and M-LOK mounting system. Made by Midwest... -
Midwest Industries Inc MI-CRMHD-13.5 Combat Rail HD MLOK 13.5 Inch
MIDWEST INDUSTRIES INC$264.99MIDWEST MI-CRMHD-13.5 COMBAT RAIL HD MLOK 13.5 Midwest Industries Inc MI-CRMHD-13.5 Combat Rail HD MLOK 13.5 Inch is a heavy-duty tactical firearm accessory designed for optimal performance and durability. Manufactured by Midwest Industries Inc, this... -
WOOX LLC Forty-Seven Handguard Wal Short SH.FRN122.01
WOOX LLC$149.99WOOX SH.FRN122.01 FORTY-SEVEN HANDGUARD WAL SHORT The WOOX LLC Forty-Seven Handguard Wal Short offers a lightweight and durable option for rifle customization. Designed for compatibility with specific firearm models, this handguard provides a secure fit... -
WOOX LLC Forty-Seven Handguard WAL Long
WOOX LLC$179.99WOOX SH.FRN122.02 FORTY-SEVEN HANDGUARD WAL LONG The WOOX LLC Forty-Seven Handguard WAL Long is designed to provide a durable and lightweight option for firearm customization. Crafted for optimal performance, this handguard offers a secure fit and easy... -
WOOX LLC Bravado Handguard Walnut Dark
WOOX LLC$219.99WOOX SH.FRN142.01 BRAVADO HANDGRD WAL MAR DARK The WOOX LLC Bravado Handguard in Walnut Dark offers a stylish and durable component for firearm customization. Designed to enhance grip and handling, this handguard features a rich walnut dark finish that... -
WOOX LLC Bravado Hardwood Wall Mount Sign
WOOX LLC$219.99WOOX SH.FRN142.03 BRAVADO HANDGRD WAL MAR GG 1895 The WOOX LLC Bravado Hardwood Wall Mount Sign offers a stylish and durable addition to any space. Crafted from high-quality hardwood, this sign features a classic design that enhances its aesthetic... -
Faxon Firearms Duty 762 16-Inch Rifle Upper Receiver
FAXON FIREARMS$801.99FAXON DUTY 762 16 SR UPP The Faxon Firearms FXURGD76216GA15CSR is a 16-inch rifle upper receiver designed for reliable performance. Crafted for duty use, it offers durability and precision for demanding shooting applications. The upper features a... -
Faxon Firearms Streamline Aluminum M-LOK 6-Inch Handguard
FAXON FIREARMS$146.99FAXON FFHGMLOK6G415 STREAMLINE ALM MLOK 6" HNDGRD The Faxon Firearms Streamline Aluminum M-LOK 6-Inch Handguard offers a lightweight and durable platform for building or upgrading your firearm. Crafted from high-quality aluminum, this handguard is... -
Faxon Firearms Streamline Aluminum M-LOK Handguard 9 Inches
FAXON FIREARMS$150.99FAXON FFHGMLOK9G415 STREAMLINE ALM MLOK 9" HNDGRD The Faxon Firearms Streamline Aluminum M-LOK handguard offers a lightweight and durable solution for customizing your firearm. Designed with precision and quality materials, this 9-inch handguard... -
Midwest Industries Combat Rail HD M-LOK 9.25 Inch
MIDWEST INDUSTRIES INC$249.99MIDWEST MI-CRMHD-9.25 COMBAT RAIL HD MLOK 9.25 The Midwest Industries MI-CRMHD-9.25 is a durable, heavy-duty combat rail designed for versatile firearm customization. Crafted with precision, this 9.25-inch M-LOK rail provides a robust mounting... -
BATTLEARMS WORKHORSE AR15/M4 10.5" .223 Wylde Complete Upper Receiver – NO BCG or Charging Handle
Battle Arms Development$529.99The WORKHORSE AR15/M4 10.5" Complete Upper Receiver delivers unmatched reliability and precision performance in a compact configuration. Featuring a 10.5-inch .223 Wylde barrel, M-LOK® free-float handguard, and forged 7075-T6 aluminum receiver,... -
BATTLEARMS AUTHORITY ELITE AR15/M4 7.5" 300BLK Complete Billet Upper Receiver
Battle Arms Development$1,099.99Turn your build into a high-performance short-barrel 300 AAC Blackout (300BLK) rifle with this complete billet upper receiver assembly — including a precision 7.5" barrel, full-auto rated BCG, and the RACK-15 ambidextrous charging handle. Built... -
BATTLEARMS WORKHORSE AR15/M4 Forged Upper Receiver — OD Green Anodize
Battle Arms Development$120.00Forged 7075-T6 upper receiver with MIL-A-8625F Type III OD Green hard anodize — service-grade strength, optics-ready, and built for repeatable alignment with Mil-Spec components. Key Features Forged from 7075-T6 aircraft-grade aluminum for proven... -
BATTLEARMS AUTHORITY ELITE AR15/M4 Lightweight 7075-T6 Billet Upper Receiver
Battle Arms Development$259.95Lightweight 7075-T6 billet AR15/M4 upper — precision machined, optics-ready, and built for durability and drop-in compatibility with Mil-Spec components. Key Features Forged & CNC machined from aerospace-grade 7075-T6 aluminum Lightweight,... -
BATTLEARMS XIPHOS AR9 LIGHTWEIGHT 9MM Dedicated PCC Upper Receiver — 7075-T6
Battle Arms Development$259.95Dedicated 9mm PCC upper built from 7075-T6 — lightweight, robust, and optimized for reliability with common 9mm blowback bolt carrier groups and PCC magazines. Key Features Forged & CNC machined from aerospace-grade 7075-T6... -
WORKHORSE Upper 16in 5.56 NATO 1:7 15in M-LOK - Without BCG or CH
Battle Arms Development$524.00Barrel:Rosco Manufacturing 16in 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .750" diameter low-profile gas block, WORKHORSE 15in M-Lok... -
BCG or CH WORKHORSE® Upper 10.5in 5.56 NATO 1:7 9.5in M-LOK® - Without BCG or CH WORKHORSE Upper 10.5in 5.56 NATO 1:7 9.5in M-LOK - Without BCG or CH
Battle Arms Development$529.99Barrel: Rosco Manufacturing 10.5in 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .750" diameter low-profile gas block, WORKHORSE 9.5in... -
Billet Dedicated Pistol Caliber Upper Receiver 7075-T6
Battle Arms Development$259.95The Battle arms development dedicated PCC upper was designed to be a lightweight and rugged option when it comes to pistol caliber upper receiver groups. Even though it is matched perfectly with our XIPHOS™ lower receiver, this upper receiver will... -
BATTLE ARMS BAD556-LW Lightweight 7075-T6 Billet Upper Receiver
Battle Arms Development$529.95Specifications: Precision CNC from Billet 7075-T6 Aerospace Aluminum Patent Pending Lightweight Design M4 Feed Ramp Machined T-Marks Laser Engraved Logo MIL-A-8625F, Type III, Class 2, Hard Anodized Flat Black Finish Compatible with TDP/Mil Standard AR... -
BATTLE ARMS WORKHORSE Forged Upper Receiver
Battle Arms Development$120.00Made from 7075 - T6 aluminum Type III hard coat anodized Matte black finish Top notch cut to match WORKHORSE and RIGIDRAIL aesthetic M4 Feed Ramp
