Shop 4,464 Deals on Upper Receivers

Anderson Stripped Sport Upper Receiver - Black

Geissele Super Duty Stripped Upper Receiver for AR-15 5.56mm 14.5in Barrel Carbine Length 1-7 Twist Sand 14.5in

CMMG Resolute Mk4 AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

CMMG Endeavor Mk3 LR-308 Complete Upper Receiver 308 Winchester 24" Barrel

CMMG Endeavor Mk3 LR-308 Complete Upper Receiver 6.5 Creedmoor 24" Barrel

Rock River Arms LR-308 Upper Receiver Assembly 308 Winchester 20" Barrel A2 Handguard

Dark Storm Industries DS-15 Complete Upper 16" Lightning 5.56 Threaded Black 5.56

Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 12 in

Black Rain Spec15 223 Remington/5.56 NATO 7075-T6 Aluminum Black Ha

Luth-AR DPMS LR308 .308 A3 Assembled Upper Receiver w/ Charging Handle Black

New Frontier Armory Pistol Caliber Gen 2 Stripped Upper Receiver Black

Stag Arms AR-15 Pursuit Right Hand Upper Receiver .350 Legend 16in Barrel Hanson Profile 1-16 Twist 1/2-28 Thread VG6 Gamma Black

Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 11.5 in

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

Luth-AR Slick Side A1 Stripped Upper Receiver .223 Remington/5.56mm 7.75in Hard Coat Anodized Black

VKTR Industries 13.7in VK-1 Complete AR-15 Upper w/ SOLGW Nox Muzzle Device Cerakote FDE

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

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16 inch Carbine Length 4150 M4 Barrel 1-7 Twist 14 inch M-LOK Free Float Hand Guard A2

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 16in Pistol 4150 Light HBAR Barrel 1-8 Twist 14in M-LOK Free Float Hand Guard A2 Muzzle

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

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16in Carbine 4150 M4 Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Birdcage Muzzle

VKTR Industries VK Complete Upper 1210822

JARD AR Side Charge .223/5.56 Upper Receiver Assembly No Bolt Black

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 16 inch Pistol Length 4150 Light HBAR Barrel 1-8 Twist 14 inch M-LOK Free Float Hand Guard