Results for 5.56x45mm NATO Complete Uppers

Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 16in M4 Barrel 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized

AERO PRECISION M4E1-T Complete Upper, 16" 5.56 Mid-Length BRL FDE

Aero Precision Complete Upper Receiver M4E1-T 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black

Aero Precision Complete Upper Receiver M4E1-T 5.56 16in M4 Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Mid Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black

Aero Precision Complete Upper Receiver M4E1-T 10.5in 5.56 Barrel 9in M-LOK ATLAS S-ONE Handguard Cerakote Flat Dark Earth

Daniel Defense AR-15 M4A1 Complete Upper Receiver 5.56x45mm 14.5" Pinned Extended Flash Hider

Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 10.3'''' Super Duty Nano Complete Upper Receiver Odg

Geissele Super Duty AR-15 Pistol Barreled Receiver 5.56x45mm NATO 14.5" Barrel Desert Dirt

M4e1 5.56mm Assembled Upper Receiver W/Atlas R-One Handguard - M4e1 5.56 Assem Upper Govt 11.5'''' Bbl Carbine Threaded Fde

PRIMARY WEAPONS SYSTEMS MK116 Pro Upper 223 Wylde/5.56 16.1" Black

DPMS DP15 Oracle II Complete Upper 5.56 16 Threaded Barrel

Geissele Automatics Geissele Super Duty 5.56mm 14.5" Heavy Bbl (.750 Journal) Black Stripped Upper Receiver (No Charging Handle, Muzzle Device, or

Geissele Super Duty AR-15 Barreled Upper Receiver 5.56x45mm NATO 16" Heavy Barrel 0.750 Gas Block Stripped Black

HM Defense 16" 5.56 Monobloc M-LOK Midlength Complete Upper w/ 15" M-LOK Handguard

DPMS M4 Complete Upper 5.56 16 Barrel w/ Quad Rail

DPMS AR-15 Complete Upper 5.56 10.5 Barrel

Aero Precision RM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel FDE

Aero Precision RM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel Black

Aero Precision Complete Upper Receiver M4E1-T RM-15 5.56x45mm NATO 16in Government Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Anodized OD Green

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 11.5in Government Carbine Length 1 in 7 1/2 x 28 10.3in A2 Flash Hider Anodized OD Green

Aero Precision Complete Upper Receiver M4E1-T SM-15 5.56x45mm NATO 16in Government Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Anodized Kodiak

Aero Precision M4E1-T RM10.3 Complete Upper 5.56 x 45 12.5inch Government Carbine 1-7 Twist 1/2 x 28 Thread Anodized Black

Aero Precision M4E1 AR15 5.56mm 8in M-LOK Threaded Upper Receiver Pistol Length 1-7 Twist 1/2x28 A2 Flash Hider 7.3in M-LOK R-ONE Handguard Cerakote