Shop 1,686 Deals on Complete Uppers

LanTac SF15 Reacon AR-15 Complete Upper Receiver, 300 Blackout, 16" Barrel, Black

FightLite MCR Dual-Feed 16.25" Upper 5.56x45mm 1:7 M-LOK Picatinny Rail, Black

Aero Precision EPC-9 Threaded Complete Upper Receiver 16in 9mm w/ ATLAS R-ONE 15in Handguard Anodized Black

Aero Precision M4E1 Complete Upper .300 AAC Blackout 16 Barrel w/ ATLAS S-ONE

Primary Weapons Systems MK114 Mod 1-M 14.50" Upper .223 Wylde 1:8 M-LOK Mid-Length with Charging Handle, Black - Precision Accuracy - M114UA01-2F-NC

Primary Weapons Systems MK111 Pro Upper .223 Wylde 11.85 Barrel

HM Defense 12.50" Classic Upper 5.56x45mm 1:8 M-LOK Rail Mid-Length with BCG and CH, Black - 125MBUP556

Rock River Arms A4 SS 16" Classic Upper .450 Bushmaster 1:24 M-LOK Mid-Length with BCG and CH, Black - 450B0461

CMMG Resolute 16.10" Upper .22 ARC with 1:7 Twist Rate and M-LOK Rail - Rifle-Length with BCG and CH - Armor Black - 28B260CAB

CMMG Resolute 16.10" Upper .22 ARC with 1:7 Twist Rate and M-LOK Rail - Rifle-Length with BCG and CH - Midnight Bronze - 28B260CMB

CMMG Dissent 16.10" Upper .22 ARC with 1:7 Twist Rate and M-LOK Rail - Rifle-Length with Charging Handle - Midnight Bronze - 28B940CMB

Rock River Arms NM A4 20" Classic Upper .223 Wylde 1:8 M-LOK Rifle-Length with BCG and CH, Black - Elite Accuracy - AR0784

Bushmaster 16" Classic Upper .223 Remington/5.56x45mm with 1:8 Twist Rate and M-LOK- Carbine-Length with BCG and CH- Black - 00-40011-BLK

Angstadt Arms 9mm Upper with 4.5" Barrel, Black - AAUT109045

HM Defense MonoBloc 9.5" AR-Style Upper Receiver 5.56x45mm/.223 Remington - 95MBUP556

HM Defense .223 Remington Upper with 16" Barrel, Black - 16MBUP556

HM Defense .223 Remington Upper with 16" Barrel, Black - 16MBUP556L

Patriot Ordnance Factory Minuteman 16.5" Complete Upper .350 Legend, Black - 1653

Patriot Ordnance Factory Minuteman 10.5" Complete Upper 5.56x45mm, Patriot Brown - 1817

Rock River Arms Legend CAR 16" SS Classic Upper .350 Legend 1:24 M-LOK Carbine-Length with BCG and CH, Black - 350L0326

Radian Weapons Model 1 MOE Upper M-LOK Rail with Charging Handle, Black - Reliable Carbine - R0193

Radian Weapons Model 1 17.5" MOE Upper .223 Wylde 1:8 M-LOK Rail Intermediate-Length with BCG and CH, Radian Gray - R0478

Radian Weapons Model 1 MOE Upper M-LOK Rail with Charging Handle, Gray - Durable Performance - R0611

CMMG Resolute 16.10" Upper .300 Blackout with 1:7 M-LOK Rail - Carbine-Length w/out CH or BCG - Armor Black - 30BC40AAB