Upper Receivers

Aero Precision M4E1 AR-15 .223 Wylde 16in M-LOK Atlas R-One Threaded Upper Receiver Standard SS QPQ Mid-Length Barrel 1-8 Twist A2 Flash Hider 15in HG

AERO M5 UPPER 6.5CM 20" FDE

Aero Precision M5 Complete Upper Receiver 20in .308 SS Rifle Barrel w/ATLAS S-ONE 15in M-LOK Handguard Anodized Black

AERO PRECISION M5E1 Enhanced 20" .308 WIN CMV Complete Upper Receiver w/ 15" Gen 2 M-LOK Handguard

Aero Precision M5E1 Complete Upper Reciever .308 16in Mid Barrel 1-10 Twist 5/8x24 Thread Free-Float Handguard Anodized Black

Aero Precision M5E1 .308 Enhanced Upper Receiver Barrel Nut Black

Aero Precision M5E1 Complete Upper Reciever 6.5 CM 24in Rifle Barrel 1-8 Twist 5/8x24 Thread Free-Float Handguard Stainless Steel Cerakote FDE

AERO PRECISION M4E1 Threaded Complete Upper, 16" .223 Wylde Mid-Length Barrel, ATLAS R-ONE 15" M-LOK

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 16in Pencil Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Cerakote FDE

Aero Precision Complete Upper Receiver M4E1-T .223 18in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth

Aero Precision Complete Upper Receiver M4E1-T .223 16in Wylde Fluted Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth

Aero Precision Complete Upper Receiver M4E1-T 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth

ANDERSON 16" Optics Ready Upper No BCG/CH

ATI MILSPORT COMPLETE UPPER 5.56X45MM 16IN BBL 13IN MLOK A2 FH

ATI UPPER 5.56X45MM 10.5" 1:7 BBL NO BCG/NO CH 10" MLOK RAIL A2 FH FLIP UP SIGHTS

AMERICAN TACTICAL IMPORTS Milsport Complete Upper 5.56 10" MLOK Rail

ATI MILSPORT UPPER 16IN BBL 15IN MLOK NO HANDLE OR BCG

ATI MS 9MM CONVERSION KIT W/ COMPLETE 5.5" UPPER 7" KM RAIL BUFFER 1-31RD ETS MAG

ATI MS 9MM CONVERSION KIT W/ COMPLETE 16" UPPER 13" KM RAIL BUFFER 1-31RD ETS MAG

ALEX PISTOL UPPER 50BEO 12 BLK

Knights Armament SR-15 Notched Upper Kit Urx-6 And Ff Ras 5 Compatible

Knights Armament 7.62MM SR-25K3 16" Upper Receiver Kit

KNIGHTS ARMAMENT Upper Receiver Kit SR-25 6.5 14.5" Barrel URX 4

SR-25 COMBAT CARBINE COMPLETE UPPER RECEIVERS 308 WIN M-LOK