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Upper Receivers

Most Popular Upper Receivers

AERO PRECISION M5 308 Win. Assembled Black AR Upper (APAR308503A)
Guncritic Certified 50%

AERO PRECISION M5 308 Win. Assembled Black AR Upper (APAR308503A)

AERO PRECISION M4E1 Threaded Stripped Black Upper Receiver (APAR700201C)
Guncritic Certified 50%

AERO PRECISION M4E1 Threaded Stripped Black Upper Receiver (APAR700201C)

AERO PRECISION AR15 5.56mm Stripped Flat Dark Earth AR Upper (APAR501801C)
Guncritic Certified 50%

AERO PRECISION AR15 5.56mm Stripped Flat Dark Earth AR Upper (APAR501801C)

AERO PRECISION AR15 5.56mm Stripped Black AR Upper (APAR501603C)
Guncritic Certified 50%

AERO PRECISION AR15 5.56mm Stripped Black AR Upper (APAR501603C)

AERO PRECISION AR15 M4E1 Enhanced Anodized Black Upper Receiver (APAR600201AC)
Guncritic Certified 50%

AERO PRECISION AR15 M4E1 Enhanced Anodized Black Upper Receiver (APAR600201AC)

AERO PRECISION AR15 XL Stripped Anodized Black Upper Receiver (APAR611310C)
Guncritic Certified 50%

AERO PRECISION AR15 XL Stripped Anodized Black Upper Receiver (APAR611310C)

AERO PRECISION AR15 5.56mm Assembled Flat Dark Earth AR Upper (APAR501801AC)
Guncritic Certified 50%

AERO PRECISION AR15 5.56mm Assembled Flat Dark Earth AR Upper (APAR501801AC)

ANDERSON AR15 Stripped Upper Receiver (D2-K100-A000)
Guncritic Certified 50%

ANDERSON AR15 Stripped Upper Receiver (D2-K100-A000)

Battle Arms Development, Inc. WORKEHORSE Forged Upper Receiver, Stripped, Fits AR-15, Black
Guncritic Certified 50%

Battle Arms Development, Inc. WORKEHORSE Forged Upper Receiver, Stripped, Fits AR-15, Black

BLACK RAIN ORDNANCE Spec15 5.56mm NATO 16in Complete Upper Receiver (BRO-SPEC15-CU16-A2)
Guncritic Certified 50%

BLACK RAIN ORDNANCE Spec15 5.56mm NATO 16in Complete Upper Receiver (BRO-SPEC15-CU16-A2)

BUSHMASTER Patrolman AR-15 M4 A3 .223 Rem/5.56 NATO 16in Black Complete Upper Receiver (91822)
Guncritic Certified 50%

BUSHMASTER Patrolman AR-15 M4 A3 .223 Rem/5.56 NATO 16in Black Complete Upper Receiver (91822)

BUSHMASTER 5.56/223 ORC M4-Profile 16in Barrel Complete Upper (92194)
Guncritic Certified 50%

BUSHMASTER 5.56/223 ORC M4-Profile 16in Barrel Complete Upper (92194)

CMMG Resolute 100 Mk4 .300 Blackout Upper Receiver Group (30B12AC)
Guncritic Certified 50%

CMMG Resolute 100 Mk4 .300 Blackout Upper Receiver Group (30B12AC)

DANIEL DEFENSE DDM4 V7 5.56mm 16in Barrel Black Upper Receiver (23-128-02339-047)
Guncritic Certified 50%

DANIEL DEFENSE DDM4 V7 5.56mm 16in Barrel Black Upper Receiver (23-128-02339-047)

DANIEL DEFENSE MK18 AR-15 Complete Upper Receiver Group (23-004-08013-006)
Guncritic Certified 50%

DANIEL DEFENSE MK18 AR-15 Complete Upper Receiver Group (23-004-08013-006)

HM Defense MonoBloc Upper 16in 5.56 NATO Black Cerakote 4150 Chrome Moly
Guncritic Certified 50%

HM Defense MonoBloc Upper 16in 5.56 NATO Black Cerakote 4150 Chrome Moly

KE ARMS KE-15 Upper Receiver with Forward Assist And Dust Cover (1-50-03-008)
Guncritic Certified 50%

KE ARMS KE-15 Upper Receiver with Forward Assist And Dust Cover (1-50-03-008)

KE Arms Slick Side Upper Receiver with Dust Cover, 223 Rem/556NATO, Black, Forged 1-50-03-365
Guncritic Certified 50%

KE Arms Slick Side Upper Receiver with Dust Cover, 223 Rem/556NATO, Black, Forged 1-50-03-365

KE Arms KE-9 Upper, Stripped, 9MM, Black 1-50-03-005
Guncritic Certified 50%

KE Arms KE-9 Upper, Stripped, 9MM, Black 1-50-03-005

LBE UNLIMITED AR15 Stripped Upper Receiver (ARSTUP)
Guncritic Certified 50%

LBE UNLIMITED AR15 Stripped Upper Receiver (ARSTUP)

MAXIM DEFENSE INDUSTRIES PDX U.R.G. 300 Blackout 5.5in Black Complete Upper Receiver (MXM-47827)
Guncritic Certified 50%

MAXIM DEFENSE INDUSTRIES PDX U.R.G. 300 Blackout 5.5in Black Complete Upper Receiver (MXM-47827)

MIDWEST INDUSTRIES Fits AR-15 .223 Wylde 16in MI-CRM14 M-LOK Handguard Black Upper (MI-N16CRM14-U)
Guncritic Certified 50%

MIDWEST INDUSTRIES Fits AR-15 .223 Wylde 16in MI-CRM14 M-LOK Handguard Black Upper (MI-N16CRM14-U)

PRIMARY WEAPONS SYSTEMS MK116 Mod 1-M .223 Wylde Upper Receiver (18-M116UA0B)
Guncritic Certified 50%

PRIMARY WEAPONS SYSTEMS MK116 Mod 1-M .223 Wylde Upper Receiver (18-M116UA0B)

Sharps Bros. SBUR03, Billet Upper Receiver, Fits AR15, Black Finish, Includes Forward Assist and Dust Cover SBUR03
Guncritic Certified 50%

Sharps Bros. SBUR03, Billet Upper Receiver, Fits AR15, Black Finish, Includes Forward Assist and Dust Cover SBUR03

SPIKE'S 5.56mm 16in Chrome Lined 1:7 Twist Flat Top Upper (STU5025-M4S)
Guncritic Certified 50%

SPIKE'S 5.56mm 16in Chrome Lined 1:7 Twist Flat Top Upper (STU5025-M4S)

SPIKE'S AR15 Forged Upper (SFT50M4)
Guncritic Certified 50%

SPIKE'S AR15 Forged Upper (SFT50M4)

WILSON COMBAT BILLet-AR Anodized Upper Receiver (TR-UPPER-BIL)
Guncritic Certified 50%

WILSON COMBAT BILLet-AR Anodized Upper Receiver (TR-UPPER-BIL)

WILSON COMBAT AR-15 Forged Stripped Upper Receiver (TR-UPPER)
Guncritic Certified 50%

WILSON COMBAT AR-15 Forged Stripped Upper Receiver (TR-UPPER)

YANKEE HILL MACHINE Stripped A3 Anodized Upper Receiver (YHM-110)
Guncritic Certified 50%

YANKEE HILL MACHINE Stripped A3 Anodized Upper Receiver (YHM-110)

ZEV TECH AR15 Forged Upper (UR-556-FOR)
Guncritic Certified 50%

ZEV TECH AR15 Forged Upper (UR-556-FOR)

Most Popular Upper Receivers Brands

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