Shop 4,464 Deals on Upper Receivers

No Brand BC-10 .308 Right Side Charging FDE Cerakote Upper 16" Parkerized Heavy Barrel 1:10 Twist Mid-Length Gas System

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

No Brand BC-15 7.62x39 Right Side Charging Tungsten Cerakote Upper 16" Parkerized Heavy Barrel 1:10 Twist Carbine

Bear Creek Arsenal BC15 12.7x42 18in Upper Receiver Heavy Mid-Length 1-20 49/64x20 Flash Hide Parkerized

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

Guntec USA AR-15 Complete 5.56 Upper Receiver w/o Lower Parts Kit N.5 15in Ultralight Series M-Lok Handguard MLS Gen 2 Stock Assembly Carbine Length

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 9mm 7.5in Pistol Length 4150 Chrome Moly Steel Barrel 1-10 Twist 7in M-LOK Rail A2 Flash

Ghost Firearms Elite Complete Upper Receiver .300 Blackout 7.5in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 7in M-LOK Free Float Hand Guard A2

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 7.62x39 16in Carbine 4150 Light HBAR Barrel 1-10 Twist 14in M-LOK Free Float Hand Guard A2 Muzzle

Ghost Firearms Upper Receiver Pistol Lower Parts Kit 7.62X39 10.5in Carbine Light HBAR Barrel 1-10 Twist 9in M-LOK Freefloat Handguard 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

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

Bear Creek Arsenal BC-15 5.56 NATO 20in Bolt Action Style Upper Receiver Bear Claw Fluted Heavy 1-8 1/2x28 Flash Hider Black Nitride

Bear Creek Arsenal BC15 7.62x39 16in Bolt Action Style Upper Receiver Heavy 1-10 5/8x24 Flash Hide Nitride

Bear Creek Arsenal BC-15 7.62x39 18in Bolt Action Style Upper Receiver Heavy Barrel 1-10 Twist 5/8x24 Flash Hider Parkerized

Bear Creek Arsenal BC-10 .308 Winchester 16in Bolt Action Style Upper Receiver Heavy 1-10 5/8x24 Flash Hider Parkerized Black

CBC Industries Unassembled AR-10 Rifle Kit 20 in 0.308 Win Black

USED Bushmaster V-Match Complete Upper Assembly 5.56mm NATO/.223 Remington 16 Inch Heavy-Profile Match Grade Chrome Lined Barrel T-Marked Flat Top

EDEMO CMMG Banshee Upper Receiver Group 9mm 5in Armor Black 99B17FD-AB EDEMO1

USED F5 MFG AR-15 Billet Upper Receiver Naked F5-AR15BU-NKD EDEMO1 Used Condition Fair

Aagil Arms Complete AR-15 5.56 NATO Upper Assembly 16in Stainless Steel Length Carbine 1-8 Twist w/ 15in Key Mod Anodized Black Medium

USED Bootleg Inc. Black Enhanced Lightweight AR 15 Upper Receiver Stripped BP-UR EDEMO1 Used Condition Fair

CMMG Upper Group Dissent Mk47 7.62X39 16.1in Empire Profile Non-Threaded Midnight Bronze

DoubleStar Complete Upper Receiver .22 Nosler 24 inch Barrel Bull Profile Diamond National Free Float Handguard Black