Shop 4,464 Deals on Upper Receivers

No Brand BC-15 5.56 NATO Right Side Charging FDE Cerakote Upper 16" Parkerized M4 Barrel 1:7 Twist Mid-Length Gas System

No Brand BC-15 5.56 NATO Right Side Charging FDE Cerakote Upper 16" Black Nitride M4 Barrel 1:7 Twist Mid-Length Gas

Bear Creek Arsenal BC-15 5.56 NATO 4.5in Bolt Action Style Upper Receiver Heavy 1-7 1/2x28 Flash Hider Parkerized

Bear Creek Arsenal BC-15 .450 Bushmaster 16in Bolt Action Style Upper Receiver Heavy 1-24 5/8x32 Flash Hider 416R

New Frontier Armory New Frontier C4 Upper Receiver Ar15 Stripped Billet Black

EDEMO Wilson Combat AR-15 Billet Stripped Upper Receiver 5.56x45mm NATO Black TR-UPPER-BIL EDEMO3

USED TacFire DPMS Complete Upper Assembly Low Profile .308 Winchester 20in Type III Hard Anodized Black Large EDEMO6 Used Condition Fair

USED Bilson Arms BA-15CL STD Build Upper Assembly 16 inch 1-7 Twist Cerakote Fde/Graphite Black

POF USA Rogue Upper Receiver Assembly Rifle Length 14in Handguard 20in Barrel 5/8x24 M-LOK Micro B Muzzle Break Patriot Brown

DEMO Aero Precision M5 .308 Upper Receiver STRP BLK APAR308503C

USED AT3 Tactical AR-15 Slick Side Billet Upper Receiver Black AT3-UPPER-1

Aagil Arms Ted Nugent's Signature Series .223 Wylde AR-15 Complete Upper Receiver Assembly w/ 15in Gun Black Cerakote

Aagil Arms Complete AR-15 .223 WYLDE Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in Clamp on Key Mod Cerakote Flat Dark Earth Medium

Aagil Arms Complete AR-15 .223 Wylde Upper Assembly 16in Barrel Length Carbine 1-7 Twist w/ 15in M-Lok Anodized Black Medium

Aero Precision M4E1-E EQ15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Anodized Black

Bilson Arms Pump Style Forward Charging Upper Assembly 9mm FC PCC-UA 16 inch 1-10 Twist Cerakote Fde / Graphite Black

Bilson Arms Pump Style Forward Charging Upper Assembly 556FC-UA 16 inch 1-7 Twist Cerakote/Anodized

Brigade Manufacturing AR Complete Upper Receiver Forged 5.56 16 inch Barrel Black Charging Handle 15 inch Rail A2 Flash Hider

Aero Precision Complete Upper M4E1-E .223 Wylde 18in Mid-Length EQ15 Anodized Black

Brigade Manufacturing AR Upper Receiver Forged Tungsten

Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2 .040 Hooded Aperture Rear Sight Black

DoubleStar Barreled Upper Receiver .224 Valkyrie 18 inch Barrel Heavy Profile 15 inch Cloak M-LOK Handguard A2 Flash Hider Black

DoubleStar Complete Upper Receiver .224 Valkyrie 24 inch Barrel Bull Profile Diamond National Free Float Handguard Black

DoubleStar Barreled Upper Receiver .22 Nosler 24 inch Barrel Bull Profile Diamond National Free Float Handguard 1-8 Black