Shop 4,464 Deals on Upper Receivers

UnbrandedAR Contract Forged 7075 A4 Upper Receiver Hard Black-anodized Finish Black

CMMG Upper Group Dissent Mk47 7.62X39 12.5in 1-10 Twist 5/8 X 24 TPI .750in 22in Hard Coat Anodized

Aero Precision M4E1-T PRO CHF M4 5.56mm 16 inch Complete Upper Receiver Hanson Mid Length 1-7 Twist A2 Birdcage Anodized Kodiak Brown

Spikes Tactical Upper 300BLK 10in Forged w/12in BAR2 Rail

CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver 1-7 Twist 5/8 X 24 TPI .750in 23.6in Tungsten

CMMG DISSENT Mk4 300BLK 14.5in P&W Upper Receiver 1-7 Twist 5/8 X 24 TPI .750in 23.6in Anodized Black

CMMG DISSENT Upper Receiver 9mm 10.5in 1-10 Twist 1/2x28 Thread Zeroed Linear Compensator Titanium

CMMG DISSENT Upper Receiver 9mm 10.5in 1-10 Twist 1/2x28 Thread Zeroed Linear Compensator Coyote Tan

XTS Complete Upper Receiver w/o BCG w/12in Ce Rail USA Edition AR15 24.75in 12in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Stainless Steel Bird

XTS Complete Upper Receiver w/o BCG w/ 12in Rail 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 w/ 12in Ce Rail USA Edition AR-15 24.75in 16in Barrel Carbine 1-8 Twist 1/2x28 Thread M-LOK Stainless Steel Bird

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 OD Green

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

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 Purple

Guntec USA AR-15 Stripped Billet Upper Receiver 15 in Air Lite Series Honeycomb M-LOK Handguard Combo Set Anodized Blue

Guntec USA AR-15 9mm Cal Complete Upper Receiver Combo Kit Black

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

Next Level Armament Phoenix AR-15 6mm ARC 18 inch Upper Receiver Helix 6 Rifle Length 1-7 Twist Muzzle Brake Anodized Black

Core 15 GTO Stripped Upper Receiver

Black Rain Ordnance Milled Upper Receiver Left Hand Black

Bear Creek Arsenal BC-15 5.56 NATO 7.5in Upper Receiver M4 Barrel Pistol Length 1-7 Twist 1/2x28 Flash Hider Black Nitride

Sharps Rifle Company 18in 25-45 Sharps Complete Upper Assembly Light Profile Mid Length 1 in 10in 5/8in-24 Free-Floating Muzzle Thread Protector Black

Aero Precision M4E1 Upper Receiver and 12" M-LOK Gen 2 Handguard Combo - FDE Cerakote

PSA AK-P GF3 Barrel Assembly - Furniture Ready