Shop 4,464 Deals on Upper Receivers

ABC RIFLE COMPANY AR-15 Sleek Billet Stripped Upper Receiver Cerakote Burnt Broze

ABC RIFLE COMPANY AR-15 Sleek Billet Stripped Upper Receiver Cerakote Sniper Grey

Brenton USA Upper Receiver Tracker .204 Ruger 22in Barrel 1/2x28 Thread 1-12 Twist Harvest MarbleKote Harvest MarbleKote

Brenton USA Upper Receiver Scout 6mm ARC 18in Barrel 5/8x24 Thread 1-7.5 Twist Harvest MarbleKote Harvest MarbleKote

Brenton USA Upper Receiver Tracker 6.5mm Grendel 22in Barrel 5/8x24 Thread 1-8 Twist Midnight MarbleKote Midnight MarbleKote

Brenton USA Upper Receiver Tracker .350 Legend 22in Barrel 9/16x24 Thread 1-16 Twist Midnight MarbleKote Midnight MarbleKote

Brenton USA Upper Receiver Scout .450 Bushmaster 18in Barrel 11/16x24 Thread 1-24 Twist Autumn MarbleKote Autumn MarbleKote

XTS Complete Upper Receiver w/o BCG w/ 12in Ce Rail AR-15 .223/5.56 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 19.5in 10.5in Pistol 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish Purple

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 Blue

XTS Complete Upper Receiver w/o BCG AR-15 300 BO 24.75in 16in Barrel Carbine 1-8 Twist 5/8x24 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 24.75in 16.5in Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Silver

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 24.75in 16.5in Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 19.5in 10.5in Carbinel Government 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Blue

Rainier Arms RUC DI 5.56 NATO Partial Upper Receiver 16in Black Medium

DEMO CMMG Dissent Mk3 6.5mm Creedmoor 20 inch Upper Receiver 1-8 Twist 5/8 x 24 CMMG ZEROED Muzzle Brake Cerakote/Hard Coat Anodized 65B280C-HCA

V Seven Enlightened 224 Valkyrie Complete Upper 1-7-in twist 1/2 x 28 Thread 20in Black 20ENLI 224 FLT-UR

V Seven 6.5 Creedmoor Complete Upper 22in 22 6.5CM-UR

WMD Guns AR-15 A3/A4 Upper Receiver Forged w/M4 Feed Ramps NiB-X Aztec Teal 1-NIBXURF-Aztec Teal

Rosco Manufacturing Purebred SP-PB-137-223-BCG-GTM-, 13.7 in Barrel, 223 Wylde

Quarter Circle 10 Side Charging Complete 9mm Upper Receiver Assembly 7.5in Barrel Black QC-CU-PSCU-G-9-7.5 Inch

Bear Creek Arsenal BC15 5.56 NATO 16in Right Upper Receiver M4 Carbine 1-8 1/2x28 Flash Hide Black Nitride FDE

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

No Brand BC-15 5.56 NATO Right Side Charging FDE Cerakote Upper 16" Parkerized M4 Barrel 1:8 Twist Carbine Length Gas