Shop 4,464 Deals on Upper Receivers

Ghost Firearms Vital 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 Birdcage

USED 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 Upper Receiver Rifle Lower Parts Kit 9mm 9x19 Para 16in Carbine Light HBAR Barrel 1-10 Twist 14in M-LOK Free Float Hand Guard A2 Muzzle

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 9mm 9x19 Para 16in Carbine Light HBAR Barrel 1-10 Twist 14in M-LOK Freefloat Handguard A2 Muzzle

Ghost Firearms Upper Receiver Rifle Lower Parts Kit .300 Blackout 16in Pistol 4150 Moly Steel Barrel 1-8 Twist 14in M-LOK Free Float Hand Guard A2

EDEMO 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

Ghost Firearms Upper Receiver Pistol Lower Parts Kit .300 Blackout 10.5in Pistol Light HBAR Barrel 1-8 Twist 11in M-LOK Free Float Hand Guard Flash

Ghost Firearms Vital Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 9in M-LOK Free Float Hand Guard A2 Birdcage

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 10.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 9in M-LOK Free Float Hand Guard A2

EDEMO Ammunition Storage Components AR-15 Billet Slick Side Upper Receiver Stripped Hardcoat Anodize Black AR-15-BSSU EDEMO1

No Brand BC-15 .223 Wylde Right Side Charging Tungsten Cerakote Upper 16" Parkerized Heavy Barrel 1:8 Twist Carbine

No Brand BC-15 12.7x42 Right Side Charging ODG Cerakote Upper 18" Parkerized Heavy Barrel 1:20 Twist Mid-Length Gas

No Brand BC-15 .300 Blackout Right Side Charging FDE Cerakote Upper 16" 416R SS Heavy Barrel 1:8 Twist Carbine Length

No Brand BC-15 5.56 NATO Right Side Charging Tungsten Cerakote Upper 16" Black Nitride M4 Barrel 1:7 Twist Mid-Length

Bear Creek Arsenal BC-15 6.5 Grendel 20in Bolt Action Style Upper Receiver Straight Fluted Heavy Barrel 1-8 Twist 5/8x24 Flash Hider 416R

Bear Creek Arsenal BC-15 6.5 Grendel 20in Bolt Action Style Upper Receiver Heavy Barrel 1-8 Twist 5/8x24 Flash Hider 416R

Bear Creek Arsenal BC-15 12.7x42 18in Bolt Action Style Upper Receiver Heavy 1-20 49/64x20 Flash Hider Parkerized

CBC Industries Unassembled AR-15 Rifle Kit 16 in 0.223 Wylde 12in Hanguard Bear Claw Black

USED TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 16in Type III Hard Anodized Black Large EDEMO2 Used Condition Fair

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

USED Arms Republic Stripped Billet Upper Receiver AR-15 Black BILLET-UR-AR-15 EDEMO1 Used Condition Fair Scratches

Aero Precision AR-15 5.56x45mm NATO Complete Upper Receiver w/ No Forward Assist 10.5in 5.56 Barrel 9in M-LOK ATLAS S-ONE Handguard Anodized Black

Evolve Weapons Systems Complete Upper Receiver 16in Mid Length Gas System Quad Rail Black

Evolve Weapons Systems Complete Upper Receiver 11.5in Carbine Gas System M-LOK Handguard Black