Results for 5.56x45mm NATO Complete Uppers

Battle Arms Authority Elite 16" Upper 5.56x45mm Free Float M-LOK Rail, Black

Noveske AR-15 N4 Infidel Pinned and Welded Complete Upper Receiver 5.56x45mm NATO 13.7" Barrel NSR-15 M-LOK Handguard Black

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 14.5" Barrel 12.7" ATLAS R-ONE Handguard Black

AERO PRECISION M4E1 Threaded Complete Upper 16" 5.56 Barrel w/ 15" M-LOK ATLAS R-ONE Handguard - BLK

Aero Precision AR-15 Barreled Upper Receiver 5.56x45 NATO 16" Barrel

AERO PRECISION AR15 Complete Upper 16" 5.56 M4

LMT Defense MRP-L M-LOK SPECWAR Assembled Upper 5.56

Midwest Industries AR-15 Barreled Upper Receiver 223 Remington (Wylde) 16" Barrel 15" Handguard

Colt Firearms LE6933 Complete Upper 5.56 NATO / .223 Rem 11.5 Barrel

FN FN15 AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

AERO PRECISION AR15 5.56 NATO / 223 Rem 10.5" Complete Upper Receiver w/ Magpul MOA Handguard | FDE

Aero Precision AR-15 Barreled Upper Receiver 5.56x45mm NATO 16" Barrel MOE SL Mid-Length Handguard Black

Aero Precision AR-15 M4E1 Barreled Upper Receiver 5.56x45mm NATO 16" Barrel Atlas S-One M-LOK Handguard Black

Geissele Super Duty AR-15 Pistol Barreled Receiver 5.56x45mm NATO 11.5" Barrel Black

Geissele Automatics Super Duty Stripped Upper - DDC Desert Dirt 5.56 10.3 Barrel

AERO PRECISION AR15 5.56 NATO / 223 Rem 20" Complete Upper Receiver w/ Carry Handle | Black

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 10.5" Barrel 9.3" ATLAS R-ONE Handguard Black

AERO PRECISION AR15 5.56 NATO / 223 Rem Complete Upper | Black

Ar15 Comp Assembled Upper 5.56 Nato Carbine Barrel W/Pinned Fsb - 5.56 Assembled Upper 16'''' M4 Bbl W/Moe Sl Carb Handguard Blk

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

Geissele Super Duty AR-15 Pistol Barreled Receiver 5.56x45mm NATO 10.3" Barrel Black

M4e1 Assembled Upper Receiver 5.56 Mid-Length - M4e1 5.56 Nato Assem Uppr Rcvr M4 14.5'''' Bbl Mid-Length Black

Noveske AR-15 N4 Carry Handle OG Upper Receiver Assembly 5.56x45mm NATO 12.5" Barrel NSR-10.75 M-LOK Handguard Black

Noveske AR-15 Chainsaw Complete Upper Receiver 5.56x45mm NATO 10.5" Barrel NSR-9 M-LOK Handguard Black