5.56x45mm NATO Upper Receivers

Stag Arms AR-15 16 Tactical CHPHS Midlength Left-Handed Upper Assembly - Black

M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6944 Upper Group 14.5in Stripped

M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6943 Upper Group 11.5in Stripped

M4 5.56 Complete Monolithic Upper Receiver Groups - M4 Le6945 Upper Group 10.3in Stripped

Precision Reflex AR-15 Flat Top Upper Receiver - Striped FDE

Precision Reflex AR-15 Flat Top Upper Receiver - Striped Black

FOSTECH STEALTH RAPTOR HGA 5.56 7.5IN BBL MACH-2 7IN RAIL SINGLE STAGE TRIGGER TUNGSTEN

FOSTECH STEALTH RAPTOR HGA 5.56 10.5IN BBL MACH-2 10IN RAIL ECHO-II TRIGGER TUNGSTEN

FOSTECH STEALTH RAPTOR HGA 5.56 7.5IN BBL MACH-2 7IN RAIL ECHO-II TRIGGER TUNGSTEN

VKTR COMPLETE UPPER VKTR FORGED UPPER 13.7IN 4140 HAMMER FORGED HUX WRX PW BARREL 12.5IN FDE

VKTR COMPLETE UPPER VKTR FORGED UPPER 13.7IN 4140 HAMMER FORGED PW BARREL 12.5IN ARMOR BLACK

VKTR COMPLETE UPPER FORGED UPPER 16IN 4140 HAMMER FORGED BARREL 15IN ARMOR BLACK

V Seven Sovereign AR-15 Threaded Stripped Upper Receiver w/no Forward Assist Cerakote Armor Black

V Seven Sovereign AR-15 Threaded Stripped Upper Receiver w/Forward Assist Cerakote Armor Black

V Seven Enlightened 7075 Aluminum AR15 Upper ENLI UR-ALU

V Seven Enlightened 2055 Lithium/Aluminum Ar-15 Upper Receiver ENLI UR-LIT

V Seven M4 Stripped Upper Type Iii Hardcoat Anodized

V Seven M4 Upper Assembly w/Minimal Forward Assist

V Seven M4 Upper Assembly w/Diamond Forward Assist

V Seven M4 Upper Assembly w/Vertical Lines Forward Assist

Brn-4 Assembled Upper Receivers - Brn-4 Assembled Upper Receiver 16'''' Heavy Barrel Black

Brn-4 Assembled Upper Receivers - Brn-4 Assembled Upper Receiver 14.5'''' Heavy Barrel Black

Brn-4 Assembled Upper Receivers - Brn-4 Assembled Upper Receiver 10.4'''' Heavy Barrel Black

Brn-4 Assembled Upper Receivers - Brn-4 Assembled Upper Receiver 16'''' Medium Barrel Black