Shop 4,464 Deals on Upper Receivers

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

Bear Creek Arsenal BC-15 5.56 NATO 20in Bolt Action Style Upper Receiver Heavy Barrel 1-7 Twist 1/2x28 Flash Hider Black Nitride

Bear Creek Arsenal BC-15 5.56 NATO 10.5in Bolt Action Style Upper Receiver M4 1-7 1/2x28 Flash Hider 416R

Bear Creek Arsenal BC-15 .350 Legend 18in Bolt Action Style Upper Receiver Heavy 1-16 5/8x24 Flash Hider 416R

EDEMO Stag Arms AR-15 Pursuit Right Hand Upper Receiver .350 Legend 18in Barrel Hanson Profile 1-16 Twist 1/2-28 Thread VG6 Gamma Black

USED 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 Blue EDEMO1 Condition

EDEMO Wilson Combat Upper Receiver 5.56x45mm NATO AR-15 Forged Anodized Black TR-UPPER-A EDEMO4

USED Next Level Armament NLX Billet .308 AR-10 Upper Receiver Stripped and Bolt Carrier Group Combo Left Hand Black/Dark Grey NLX155

OpticsPlanet Exclusive Moriarti AR-9 Upper Receiver Assembly 9mm Luger 4.5in M-LOK 1-10 Twist Diamond Cut Free-Float Handguard Multiport Muzzle Brake

Vltor Keymod Polylithic Upper Ext. Mid Length. Shell Deflector Only Black

OP Exclusive Moriarti AR-15 Upper Receiver 300 Blackout 10.5in Pistol Medium M-LOK 1-7 Twist 5/8x24 Thread Diamond Cut Free-Float Handguard A2 Flash

Guntec USA AR-15 Stripped Billet Upper Receiver w/10in Ultralight Series M-Lok Handguard Flat Dark Earth

EDEMO Aero Precision M4E1 Threaded Assembled Upper Receiver M16/AR-15 Anodized Black EDEMO6

DEMO Aero Precision M4E1 Complete Upper Receiver AR-15 5.56x45mm NATO 14.5 in Mid Length Barrel 12 in Quad Rail Handguard No BCG/CH Magpul Cerakote

DEMO Aero Precision M5E1 .308 Enhanced Upper ReceiverAnodized Black

USED TRYBE Defense AR-15 Stripped Upper Receiver Type II Mil-Spec 7075 T6 Forged Aluminum Hard Anodized URS EDEMO7 Condition Parts Only/Salvage

USED Luth-AR Stripped A2 Upper Receiver w/ Rear Sight Cut AR-15 5.56x45mm NATO/ .223 7.75in Length 7075-T6 Aluminum Anodized Black UR-A2-S

EDEMO Luth-AR Slick Side A1 Stripped Upper Receiver .223 Remington/5.56mm 7.75in Hard Coat Anodized Black UR-01-E3-S EDEMO1

EDEMO TRYBE Defense Complete Upper Receiver AR-15 16in M-LOK .223 Wylde 5.56x45mm NATO Black w/ Charging Handle and BCG EDEMO5 Used

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 Upper Receiver Pistol Lower Parts Kit 5.56mm 7.5in Pistol 4150 Moly Steel Barrel 1-7 Twist 7in M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Upper Receiver Pistol Lower Parts Kit 5.56mm 7.5in Pistol 4150 Moly Steel Barrel 1-7 Twist 7in M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Upper Receiver Rifle Lower Parts Kit 5.56mm 16in Carbine 4150 Chrome Moly Steel Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2

Ghost Firearms Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash Can