Shop 1,690 Deals on Complete Uppers

Aero Precision AR-15 Upper Assembly 5.56x45mm NATO 16" Barrel MOE Mid-Length Handguard Flat Dark Earth

Aero Precision M4E1-T Complete Upper Receiver 16in .223 Wylde Fluted Barrel ATLAS R-ONE 15in M-Lok Handguard Anodized Black

Aero Precision M5E1 Complete Upper Reciever .308 16in Mid Barrel 1-10 Twist 5/8x24 Thread Free-Float Handguard Cerakote FDE

Aero Precision M5 Complete Upper Receiver 16in .308 CMV Mid Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Flat Dark Earth

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black

Aero Precision AR-15 Upper Assembly 5.56x45mm NATO 10.5" Barrel MOE Carbine Handguard Black

Aero Precision AR-15 M4E1-E Upper Assembly 6.5 Grendel 20" Barrel 15" EM Gen2 Enhanced Handguard Black

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Mid Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black

Aero Precision AR-15 Upper Assembly 5.56x45mm NATO 10.5" Barrel MOE Carbine Handguard Flat Dark Earth

Aero Precision M5 Complete Upper Receiver 18in 6.5 Creedmoor SS Mid-Length Barrel w/ATLAS R-ONE 15in M-LOK Handguard Anodized Black

Aero Precision AR-15 M4E1-E Upper Assembly 5.56x45mm NATO 14.5" Barrel 12.7" ATLAS R-ONE Handguard with Pinned Epsilon SL Muzzle Device Black

Aero Precision M4E1 AR-15 Barreled Upper Receiver 6.5 Grendel 20" Barrel

Daniel Defense M4A1 5.56mm NATO 14.5" 1:7" Bbl Black Upper Receiver Group w/Pinned Ext. Flash Hider 23-004-12100

Sons of Liberty Gun Works SOLGW 14.50" Upper 5.56x45mm M-LOK Rail - Precision Carbine - M4L89BSCHF14.5HUX

Angstadt Arms 10.50" Upper 9mm 1:10 M-LOK Mid-Length, Black

CMMG Endeavor 20" Upper .22 ARC with 1:7 Twist Rate and M-LOK Rail - Rifle-Length with BCG and CH - Sniper Gray - 28B3D0CSG

Lead & Steel Just As Good 18" Upper 5.56x45mm 1:7 Free Float M-LOK Mid-Length, OD Green

Sons of Liberty Gun Works .223 Remington Upper with 13.7" Barrel, Black - PATROLSLUPPER13.7556

Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 16'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Odg

Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 10.3 Super Duty Nano Complete Upper Receiver Ddc

Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 10.3 Super Duty Nano Complete Upper Receiver Black

Aero Precision M4E1 Complete Upper 5.56 7.5 Barrel

Griffin Armament CQB AR-15 Pistol Complete Upper Receiver 223 Remington (Wylde) 11.5" Barrel

Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver 16in 5.56 Mid RM15 Anodized Black