Shop 4,464 Deals on Upper Receivers

Radical Firearms Upper Assembly 8.5 inch 300 AAC HBAR Contour 7 inch FCR A2 FH w/o BCG and CH Black

Radical Firearms Complete Upper Assembly 10.5in 458 SOCOM .936 1/14 Twist 9in MHR M-LOK Panzer Brake Black

FN SBR Upper .223 Rem 11.5 Barrel Flat-Top

Angstadt Arms AR-15 Complete Upper Assembly with Flash Hider 9mm Luger 10.5 inch Barrel M4 Profile 1-10 Twist 1/2x28 Chromoly Black

HIPP Customs Complete Upper Receiver 25.5in 16in Barrel 1-7 Twist Hipp Lite Weight Handguard Black/Blue 16.0in

Jacob Grey Firearms JG-15 Stripped Upper Receiver Billet Aluminum Anodized Black

POF USA Renegade Plus Upper Receiver Assembly .300 AAC Blackout 10.5in Barrel 9.5in Picatinny Rail Carakote Burnt Bronze

Spikes Tactical Upper 5.56 14.5in 16in OAL Midlength Lightweight LE w/12in BAR2 Rail w/ Vortex FH

Spikes Tactical Upper 5.56 14.5in 16in OAL Midlength Lightweight LE w/10in BAR2 Rail w/ Vortex FH

Spikes Tactical Upper 300BLK 8.3in Barrel w/7in SAR3

Spikes Tactical Upper 300BLK 16in w/10in BAR2 Rail

Spikes Tactical Upper 5.56 16in Midlength LE w/9in M-LOK Rail & FSP

Spikes Tactical Upper 5.56 16in M4 LE w/10in SAR3 Rail

VKTR Industries VK Complete Upper 1210824

ABC RIFLE COMPANY AR-15 Sleek Billet Stripped Upper Receiver Raw

ABC RIFLE COMPANY AR .40 S&W Pistol 4in Barrel M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Sniper Grey

ABC RIFLE COMPANY AR9 9mm Luger Pistol 4in Barrel M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Olive Drab Green

ABC RIFLE COMPANY AR-15 .223 Remington/5.56x45mm NATO Micro Pistol 5in Barrel M-LOK Handguard Upper Receiver w/BCG And Charging Handle Robbin's Egg

ABC RIFLE COMPANY AR-15 7.62x39mm 10in Quadrail Handguard Complete Pistol Upper Receiver w/BCG And Charging Handle Flat Dark Earth

Brenton USA Upper Receiver Guide .350 Legend 18in Barrel 9/16x24 Thread 1-16 Twist Midnight MarbleKote Midnight MarbleKote

Brenton USA Upper Receiver Tracker 6mm ARC 22in Barrel 5/8x24 Thread 1-7.5 Twist Midnight MarbleKote Midnight MarbleKote

CMMG Dissent Mk4 5.56mm 16.1in Upper Group 1-7 Twist 1/2 X 28 TPI .750in 25.5in Midnight Bronze

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

CMMG DISSENT 5.7x28mm 6.5in Upper Receiver 1-9 Twist 1/2 X 28 TPI Coyote Tan