Shop 4,464 Deals on Upper Receivers

Noveske 03000031 Gen3 Stripped Upper Aluminum Black Anodized Receiver for AR-15

VKTR Industries VK-1 5.56x45mm NATO 13.7 inch Upper Receiver Heavy Carbine Length 1-7 Twist No Muzzle Device Armor Black

CMMG Resolute 300 Upper Receiver Black 9mm 16 Barrel 3-30rd Magazines

ABC RIFLE COMPANY AR-15 .223 Remington/5.56x45mm NATO Pistol 7.5in Barrel M-LOK Handguard Complete Pistol Receiver w/BCG And Charging Handle Olive

ABC RIFLE COMPANY AR-15 7.62x39mm Micro Pistol 5in Barrel M-LOK Handguard Upper Receiver w/BCG And Charging Handle Rose

ABC RIFLE COMPANY AR-15 7.62x39mm 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Micro Pistol Upper Receiver w/BCG And Charging Handle

Stag Arms AR-10 Long Range Left Hand Upper Receiver 6.5 Creedmore 24in Barrel NJ Compliant HBAR-CMV Profile 1-10 Twist 5/8X24 Thread VG6 Gamma FDE

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 16in Barrel ATLAS S-ONE 12in Handguard M-LOK Cerakote Flat Dark Earth

CMMG UPPER GROUP BANSHEE GEN 2 MK47 7.62X39 12.5IN TITANIUM

CMMG Banshee Mk47 7.62x39mm 12.5in Gen 2 Complete Upper Receiver MT Carbine 1-10 Twist 5/8x24 TPI Sniper Grey

Bowden Tactical AR-15 Rifle Build Kit 350 Legend 18in Barrel 15in Handguard Flash Hider Black

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

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

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

TRYBE Defense Complete Upper Receiver AR-15 7.62x39mm 16 inch Barrel Carbine Length 1-10 Twist Free-Float Handguard A2 Flash Hider Black Nitride

TRYBE Defense 10.5 in Government Profile AR-15 Pistol Barrel .750 in Gas Block Carbine Gas Tube .223 Wylde

ABC RIFLE COMPANY AR-15 Custom Billet Modular Stripped Upper Receiver Sniper Grey

ABC RIFLE COMPANY AR .40 S&W Billet Pistol 4in Barrel Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Olive Drab Green

ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG And Charging

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

CMMG MkGs .40 S&W Banshee Upper Group Receiver 8in Midnight Bronze

Brenton USA Upper Receiver Guide .223 Remington 18in Barrel 1/2x28 Thread 1-12 Twist Midnight MarbleKote Midnight MarbleKote

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

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