Shop 4,464 Deals on Upper Receivers

Radical Firearms RF Mil-Spec Forged AR15 Upper Reciever 7075 M4 Feed Ramps w/Forward Assist & Dust Cover Assemblies/Type 3 hardcoat anodize Black

Stag Arms AR-10 Stag 10 Upper Receiver Assembly .210 DPMS High Profile Right Hand Type 3 Hard Coat Anodized Black

Jacob Grey Firearms Ultralight Complete Upper Assembly .300 AAC Blackout 8in Black

Ballistic Advantage Premium Black Series Barrel .308 Win 16 inch Hanson Midlength 1-10 Twist 5/8 x 24 Thread Anodized Black

CMMG Upper Group Resolute Mk4 .22Lr 16.1in 1-16 Twist 1/2 X 28 TPI 24in Sniper Grey

CMMG Upper Group Dissent Mk47 7.62X39 16.1in Empire Profile Non-Threaded Coyote Tan

CMMG Upper Group Dissent Mk3 .308Win 16.1in Empire Profile Non-Threaded Titanium

Brigade Manufacturing AR Complete Upper Receiver Forged 9mm 16 inch Barrel Midnight Bronze Mini Can 15 inch Rail No Charging Handle NO BCG

Alpha Shooting Sports SSR15 Upper Receiver 5.56x45mm NATO 16in Hybrid Profile Mid Length 1-8 Twist Free Floating M-LOK Handguard A2 Flash Hider

Del-Ton Pre-Ban M4 Carbine Rifle Kit 5.56x45mm NATO 14.5 in 1-9 Twist Matte Black

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

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

ABC RIFLE COMPANY AR-15 .223 Remington/5.56x45mm NATO Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG

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

CMMG Upper Group Dissent Mk47 7.62X39 16.1in 1-10 Twist 5/8 X 24 TPI .750in 26in Titanium

CMMG Upper Group Dissent Mk47 7.62X39 14.5in P&W 1-10 Twist 5/8 X 24 TPI .750in 27.5in Tungsten

CMMG Upper Group Dissent Mk47 7.62X39 14.5in P&W 1-10 Twist 5/8 X 24 TPI .750in 27.5in Titanium

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

Blackout Defense Dual Taper Lock Mid Complete Upper 14.5in Barel M-LOK Handguard Bronze

Blackout Defense Complete Dual Taper Lock .300 AAC Upper Receiver Group Forward Assist 14.5in Pistol Black

Blackout Defense Complete Dual Taper Lock .300 AAC Upper Receiver Group Slick Side 14.5in Pistol Grey URGDTL300BLK14.5SLKGRY

Blackout Defense Complete Dual Taper Lock .300 AAC Upper Receiver Group Forward Assist 9in Pistol Burnt Bronze

Blackout Defense Complete Dual Taper Lock .223 Wylde Upper Receiver Group Forward Assist 13.9in Mid Burnt Bronze

Stag Arms AR-10 Stag 10 Upper Receiver Stripped .210 DPMS High Profile Left Hand Type 3 Hard Coat Anodized Black