Shop 4,464 Deals on Upper Receivers

POF USA Rogue Upper Receiver Assembly Mid Length 11in Handguard 16.5in Barrel 5/8x24 M-LOK Micro B Muzzle Break Black

POF USA Revolution DI Complete Upper Black Andodized 308WIN 12.5"

Tiger Rock Complete Upper Receiver AR-15 7.62x39 7.5in Pistol Length 1-9.5 Twist w/ 7in Super Slim Hanguard Black Large

Luth-AR 16 in Bull Rifle Kit Minus Lower Receiver w/Fixed Stock M-Lok Black Carbine

Luth-AR 11.5 in Light Weight Complete Upper Barrel Receiver Assembly - 5.56 1x7 twist M-Lok Free Float Handguard Black 11.5

DoubleStar 7.5in .300 Blackout AR Pistol Upper Complete HBAR M4 Feed Ramps 1x8 Twist Black

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

Spikes Tactical Upper 5.56 14.5in 16in OAL Midlength Lightweight LE w/10in SAR3 Rail w/ Vortex FH

Spikes Tactical Upper 300BLK 10in Forged w/9in BAR2 Rail

CMMG 9mm Banshee Upper Group Receiver 8in Tungsten

CMMG Mk47 Banshee Upper Receiver Group 7.62x39mm 8in Armor Black

CMMG Mk4 5.56X45mm NATO Banshee Upper Group Receiver 10.5in 1-7 Twist 1/2 X 28 TPI 18.8in Titanium

CMMG Mk4 .22LR Resolute Upper Group Receiver 17in Titanium

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

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

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 .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 Remington/5.56x45mm NATO Micro Pistol 5in Barrel Custom 5in Top Cut Custom M-LOK Handguard Complete Upper Receiver w/BCG

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

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

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 AR-15 223/5.56 16.5in 7.5in Pistol 1-7 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish

XTS Complete Upper Receiver w/o BCG AR-15 223/5.56 24.75in 16.5in Carbine 1-8 Twist 1/2x28 Thread M-LOK Bird Cage Black Nitride Finish Bronze

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