5.56x45mm NATO Upper Receivers

Aero Precision M4E1-T RM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE

Aero Precision M4E1-T SM10.3 5 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Cerakote FDE

Aero Precision M4E1-E EM15 Complete Upper 5.56 x 45 16inch HBAR Mid Length 1-7 Twist 1/2 x 28 Thread Cerakote FDE

Aero Precision M4E1 Special Edition Thunder Ranch 16" 5.56 Mid-Length w/ 15" ATLAS R-ONE Complete Upper - Black

AERO PRECISION M4E1 Threaded 10.5" 5.56 No FA Complete FDE Upper

AERO PRECISION M4E1-T-NO FA-Comp. Upper, 10.5" 5.56 Carbine

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 18in Government Rifle Length 1 in 7 1/2 x 28 15in A2 Flash Hider Cerakote FDE

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 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth

ANDERSON 16" Optics Ready Upper No BCG/CH

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

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

Daniel Defense V7K 5.56mm NATO 10.3" Free-Floating Bbl DD Flash Suppressor M-LOK Rail Complete Upper Receiver 23-128-10629-047 in Black

M4a1 Fsp 5.56x45mm Stripped Upper Receiver - M4a1 Fsp 5.56x45mm 14.5''''bbl Stripped Upper W/12.25''''handguard

Daniel Defense AR-15 DDM4v7 Barreled Upper Receiver 5.56x45mm 16" Barrel with Iron Sights

M4a1 Riii 5.56x45mm Stripped Upper Receiver - M4a1 Riii 5.56x45mm 14.5''''bbl Stripped Upper W/12.5''''handguard

Mk18 Stripped Socom Upper Receiver W/ Handguard Only - Mk18 Stripped Socom Upper Receiver

OpticsPlanet Exclusive Daniel Defense Upper Receiver 14.5 in 1/7 Twist Mil Spec Ceracote Finish Black/Brown

Franklin Armory OPS-16 5.56 NATO 16in Piston Complete Upper Reciever Black

American Defense Manufacturing 5.56 14.5 Inch Barrel M-Lok Rail Upper Reciever Black 14.5 in

American Defense Manufacturing 5.56 12.5 Inch Barrel M-Lok Rail Upper Reciever Black 12.5 in