Shop 4,464 Deals on Upper Receivers

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 17.5in 8.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Red

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Blue

EDEMO 3rd Gen Tactical AR-15 Upper Receiver with Flat Pic Rail and Forward Assist Black Anodize 3GTU-02 EDEMO1

Bushmaster F1007571 450BMSt Upper Assembly

APF 5.56 NATO Carbine Complete Upper Black

V Seven Enlightened 300Blkout Complete Upper 16in 16 ENLI 300 FLT-UR

Next Level Armament NLX .308 AR-10 Billet Upper Receiver Stripped Left Hand Anodized to Mil-Spec Black

APF 6.5 Grendel DMR Complete Upper Black

Anderson AR-15 Assembled Upper Receiver

EDEMO CMMG Mk4/AR-15 Upper Receiver Assembly Armor Black 55BA290-AB EDEMO1

Dark Hour Defense Billet Upper Receiver AR15 Black

USED Arms Republic Stripped Billet Upper Receiver AR-15 9mm Black BILLET-UR-9MM EDEMO1 Used Condition Like New

KAK Complete AR15 Upper Receiver - 9mm - 11" Barrel - 9.8" MLOK

EDEMO Bravo Company AR-15/M4 Complete Upper Receiver Assembly Flattop Aluminum Black BCM4-UR-M4 EDEMO4

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 7.5in Pistol 4150 M4 Barrel 1-7 Twist 9in M-LOK Free Float Hand Guard Flash Can

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 7.5in Pistol Length 4150 M4 Barrel 1-7 Twist 9in M-LOK Free Float Hand Guard

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 7.5 inch 4150 Light HBAR Barrel 1-10 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 9mm 9x19 Para 16 inch 4150 Light HBAR Barrel 1-10 Twist 14 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 7.62x39 16in Carbine Light HBAR Barrel 1-10 Twist 14in M-LOK Free Float Hand Guard A2 Muzzle

Ghost Firearms Upper Receiver Pistol Lower Parts Kit .300 Blackout 10.5in Pistol Light HBAR Barrel 1-8 Twist 11in M-LOK Freefloat Handguard Flash Can

Ghost Firearms Upper Receiver Pistol Lower Parts Kit .300 Blackout 10.5in Pistol Moly Steel Barrel 1-8 Twist 9in M-LOK Free Float Hand Guard A2 Flash