Shop 1,690 Deals on Complete Uppers

Aero Precision Complete Upper Receiver M4E1-T 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black

Aero Precision Complete Upper Receiver M4E1-T 10.5in 5.56 Barrel 9in M-LOK ATLAS S-ONE Handguard Anodized Black

CMMG Banshee 8" Upper 9mm 1:10 M-LOK Rail, Coyote Tan

LWRC REPR MKII Elite 22" Upper 6.5 Creedmoor 1:8 M-LOK, Patriot Brown

LWRC REPR MKII Elite 22" Upper 6.5 Creedmoor 1:8 M-LOK, Flat Dark Earth

ATI Milsport 7.50" Upper 5.56x45mm 1:8 M-LOK Rail, Black

CMMG Endeavor 20" Upper .22 ARC with 1:7 Twist Rate and M-LOK Rail - Rifle-Length with BCG and CH - Titanium - 28B3D0CTI

Aim Sports 10" Complete Upper Assembly 5.56x45mm 1:8, Black - AR5CUB8

Aero Precision Complete Upper Receiver M4E1 .300 Barrel EM-7 HG No BCG/Charging Handle Gen 2 FDE Cerakote 8in APAR600212M1

Radian Weapons 9" Complete Upper .300 AAC Blackout 1:5, Black - R0027

Radian Weapons Model 1 MOE Upper M-LOK Rail with Charging Handle, OD Green - Rugged Tactical - R0614

Radical 6.5 Grendel Upper with 16" Barrel, Black - RF00421

CMMG Resolute 16.10" Upper 5.56x45mm with 1:7 Twist Rate and M-LOK Rail - Mid-Length with Charging Handle - Midnight Bronze - 55BB40BMB

CMMG Resolute MK4 .300 AAC Blackout M-LOK 16.1" 1:7 Twist Upper, Midnight Bronze - 30BC40AMB

Panzer AR57 ULT Upper Assembly 5.7x28mm 12" - AR57ULT-12

Griffin Armament Patrol AR-15 Pistol Complete Upper Receiver 223 Remington (Wylde) 14.5" Barrel

Aero Precision M5 Complete Upper Receiver 20in 6.5 Creedmoor SS Rifle Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Flat Dark Earth

AERO PRECISION M4E1 PRO Complete Upper 5.56 NATO 16.3" / 15" ATLAS R-ONE Handguard - Black

Radian Weapons Model 1 MOE Upper M-LOK Rail with Charging Handle, Black - Premium Tactical - R0403

Aero Precision AR-15 M4E1-E Complete Upper Assembly 5.56x45mm NATO 8" Barrel 7.3" ATLAS R-ONE Handguard Black

Aero Precision RM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel FDE

Aero Precision AR-15 EPC-9-T Upper Assembly 9mm Luger 8.3" Barrel 7.3" ATLAS R-ONE Handguard Flat Dark Earth

Aero Precision Complete Upper Receiver M4E1 Threaded PRO 5.56 12.5in Barrel Gov Profile Mid-Length Gas System 1-7 Twist 1/2 x 28 Thread ATLAS R-ONE

Aero Precision AR-15 M4E1-E Complete Upper Assembly 5.56x45mm NATO 8" Barrel 7.3" ATLAS R-ONE Handguard Flat Dark Earth